G R E E N W I C H
SPECTROSCOPIC AND PHOTOGRAPHIC
R E S U L T S ,
1886.
SPECTROSCOPIC AND PHOTOGRAPHIC
OBSERVATIONS
MADE AT THB
ROYAL OBSERVATORY, GREENWICH,
1886.
(EXTRACTED FROM THE GREENWICH OBSERVATIONS, 1886.)
GBBBNWIOH OBSEBVATIONS, 1886. (a) 2
Blank page retained for pagination
GBEENWICH SPECTEOSCOPIC AND PHOTOGRAPHICEESULTS, 1886,
INTRODUCTION.
§ 13. Spectroscopic Observations in the Year 1880.
The spectroscope used for these observations was mounted on the South-eastequatoreal, the object-glass of which (made by Merz and Son of Munich) has a,clear aperture of 12'8 inches, with a focal length of about 17"- 10in-
This section contains :—Observations of Solar Prominences ; Observations of theSpectrum of a Sun Spot j Measures of Displacement of Lines in the Spectra ofStars, Moon and Planets ; Experimental Observations of the Displacement of Lines inthe Spectra of Stars made with the Reversion Apparatus of the Oxford ReversionSpectroscope ; Collected Results for Motions in the line of Sight and for the Rotationof Jupiter ; and Observations of the Spectra of 51 Schjellerup, Nova Orionis, andComets e 1885 and/1880.
For the observations of solar prominences, the Greenwich Civil Times, commencingat Greenwich mean midnight and reckoning from 0 to 24 hours, are given ; andthe position-angle from the Sun's axis of the two extremities of each prominence,tofether with its height in seconds of arc. The Sun's image was always placedcentrally with respect to the position-circle, a radial excentricity being given to thespectroscope, so that the slit swept round the Sun's limb.
The position-angles have been first corrected for index-error of the position-circle,which is determined at the time of observation.
The method employed for this purpose has been to set the position-circle to 90°plus the approximate index-error, so that the slit points approximately E. and W.,and to move the telescope by the slo\v motions until either the north or the southlimb of the Sun just comes into the middle of the field. The position-circle is thenread, and the spectroscope rotated through 180°, the telescope remaining rigidlyclamped, and as the diurnal motion brings the Sun up to the slit again, the limbpreviously observed is again brought to the centre of the field by means of therotation of the spectroscope. The position-circle is read a second time, and themean of the two readings, corrected for the inclination of the Sun's path, is takenas the zero of the position-circle.
(a)3
1л* INTKODUCTION то GREENWICH-SPECTBOSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.
The corrected position-angles have then been converted into Heliographie N. P. D.by applying as a correction the position-angle of the Sun's north pole, taken fromthe " Auxiliary Tables for determining the Angle of Position of the Sun's Axis,and the Latitude and Longitude of the Earth referred to the Sun's Equator," byWarren De La Rue, F.R.S.
The heights of the bright lines seen in the prominences or chromosphere wereread off on a pearl scale, divided to O'OOS inch (corresponding to 2"'4), and carriedby the micrometer of the spectroscope. Other particulars are given in the note at thehead of this section.
The measures of displacement of lines in the spectra of stars were made with amicrometer in the viewing telescope of the "Half-prism" Spectroscope. Theeye-piece used gives a magnifying power of 14. Estimations of the displacement, interms of the apparent breadth of the bright comparison-line, were also made ; thebreadth corresponding to any given width of slit being determined by a carefulobservation under similar conditions. lreTi of the screw for opening the slitcorresponds to O'Ol inch, or 10". It has not been thought necessary to give indetail all these particulars of the reductions. The values used in each case may beinferred from the observed motion, which is the algebraic sum of the concludedmotion and of the Earth's motion. A displacement of one tenth-metre correspondsat D to a motion of 31-7 miles per second, at b to a motion of 36*1 miles, and at Fto a motion of 38*4 miles. For comparison with the spectrum of hydrogen or otherchemical element, an image of the vacuum tube or electrodes is formed on the slit,by means of a transparent plate of glass placed at an angle of 45° with the axis ofthe collimator, in connexion with a collimating lens, so that the cone of raysfrom the comparison-light fills the whole of the object-glass of the collimator.
Whenever the star-line was sufficiently distinct to allow of its being seen at thesame time as the bright comparison-line, a direct comparison of the two was made ;in other cases the bright line was compared with the pointer of the micrometerwhich had just previously been placed on the star-line, giving an indirectcomparison.
The reading of the position-circle is given, as it is conceivable that the resultsmight be affected by the position of the spectroscope. The slit lies north and southwhen the reading is 5°.
The observations of displacement made with the reversion apparatus of the OxfordReversion Spectroscope were confined to estimations, no actual micrometric measuresbeing made, for reasons given in the account of the observations. The breadth of the
MEASURES OF PHOTOGRAPHS OF THE SUN. v
bright comparison-line was carefully measured (with the same width of slit) with themicrometer and viewing telescope of the " Half-prism" Spectroscope, and the equivalentdisplacement in wave-length and motion in miles per second were found in the usualmanner. The reversing apparatus in this spectroscope consists of two totally reflectingreversion prisms placed between the train of dispersing prisms and the viewingtelescope. The refracting edges of the trains of prisms being supposed for convenienceof description to be vertical, the lower half of the pencil falls on the lower reversionprism and is reversed end for end by reflexion, the edge of the prism being perpendicularto the length of the spectrum, and the upper half falls on the upper reversionprism pkced with its edge parallel to the length of the spectrum, so that the upperhalf of the spectrum, after reflexion, is reversed top for bottom. Thus, after passingthrough this reversing apparatus, the red is on the right in one half of the spectrumand on the left in the other. By turning the upper prism round an axis parallel toits edge, the spectra may be superposed or separated to any required distance in adirection perpendicular to their length. By turning the lower prism about an axisparallel to its edge or by turning the train of dispersing prisms, any given line in thereversed half may be brought into coincidence with the corresponding line in theother half. For these adjustments suitable screws are provided.
In practice the two spectra were adjusted so as to be just in contact, and the broadF lines in the two spectra brought into coincidence by either of the methods mentioned.The light from a hydrogen vacuum tube was then flashed in, and the amount ofdisplacement of the two images of the bright H/3 line was estimated in terms of thebreadth of either.
With regard to the observations of the spectra of 51 Schjellerup, Nova Orionis,and the Comets, it ia sufficient to remark that curves have been laid down in theusual manner, connecting micrometer readings and wave-lengths for both the" Half-prism " and Single-prism Spectroscopes, and that the value of a revolution ofthe micrometer in tenthmetres of wave-length has been inferred from these for thepoint of the spectrum measured. The tabular wave-lengtha of comparison-lineshave been taken from Angstrom's Spectre Normal du Soleil.
\
§ 14. Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk onPhotographs taken at the Royal Observatory, Greenwich, at Dehra Dun in India,.and at the Royal Alfred Observatory, Mauritius, in the year 1886 ; with thededuced Heliographie Longitudes and Latitudes.
The photographs from which these measures were made were taken either atGreenwich, at Dehra Dun, North-W est Provinces, India, or at the lioyal AlfredObservatory, Mauritius.
•vi INTRODUCTION то GREENWICH SPECTROSCOPÏC AND PHOTOGRAPHIC RESULTS, 1886.
The photographs of the Greenwich series were taken with the Dallmeyer Photo-heliograph returned from the Transit of Venus expedition to New Zealand, which,as now adapted, gives a solar image of 8 inches diameter on the photographic plate.
Bromo-iodized gelatine dry plates with alkaline development have been regularlyused throughout the year.
The Indian photographs, which have been forwarded by the Solar PhysicsCommittee to till the gaps in the Greenwich series, were taken under thesuperintendence of J. B. N. Hennessey, F.K.S., Deputy Superintendent, Trigono-metrical Survey of India, with a Dallmeyer photoheliograph giving an image of theSun nearly 8 inches in diameter. In the process adopted at Dehra Dun bromo-iodizedcollodion has been used in connexion with iron development.
The Mauritius photographs were taken under the superintendence of Dr. C.Meldrum, Director of the Royal Alfred Observatory, Mauritius, with a Dallmeyerphotoheliograph, giving an image of the Sun about 8 inches in diameter. At theMauritius Observatory both wet and dry processes have been used, bromo-iodizedcollodion having been used with iron development, and bromo-iodized gelatine dryplates with alkaline development.
Photographs of the Sun were taken at Greenwich on 199 days and Indianphotographs on 128 days with Mauritius photographs on 36 days have been receivedfrom the Solar Physics Committee to complete the total of 363 days for which thereare either Greenwich, Indian, or Mauritius photographs of the Sun available formeasurement in 1886.
The first column on each page contains the Greenwich Civil Time at which eachphotograph was taken, expressed by the day of the year and decimals of a day,reckoning from Greenwich mean midnight January Id. Oh., and also by the dayof the month (civil reckoning), which latter is placed opposite the total area ofSpots and Faculse for the day. The photographs taken in India are distinguishedby the letter I, and those taken in Mauritius by the letter M.
The second column contains the initials of the two persons measuring thephotograph ; the initial on the left being that of the person who measured thephotograph on the left of the centre of the measuring instrument, and that on theright being that of the person who measured on the right of the centre.
The following are the signatures of those persons who measured the photographslor the year 1886 :—
E. W. Maunder - - M S . Phillips - - - SPH. P. Hollis - - H Á. E. Pilkington - - EPJ . Hawton . . . J H
MEASURES OF PHOTOGRAPHS OF THE SUN. vii
The third column gives the No. of the group, and the letter for the spot. Thegroups are numbered in the order of their appearance.
The next two columns give the Distance from the Centre of the Sun in terms ofthe Sun's Radius, and the Position-Angle from the Sun's Axis, reckoned from theSun's North Pole in the direction щ /, s, p, both results being corrected for theeffects of astronomical refraction. .
'The measures of the photographs were made with a large position-micrometer»specially constructed by Messrs. Troughton and Simms for the measurement ofphotographs of the Sun up to 12 inches in diameter. In this micrometer thephotograph is held with its film-side uppermost on three pillars fixed on a circularplate, which can be turned through a small angle, about a pivot in its circumference,by means of a screw and antagonistic spring acting at the opposite extremity of thediameter. The pivot of this plate is mounted on the circumference of anothercircular plate, which can be turned by screw-action about a pivot in its circum-ference, 90° distant from that of the upper plate, this pivot being mounted on acircular plate with position-circle which rotates about its centre. By this meanssmall movements in two directions at right angles to each other can be readilygiven, and the photograph can be accurately centred with respect to the position-circle.When this has been done, a positive eye-piece, having at its focus a glass diaphragmruled with cross-lines into squares, with sides of one-hundredth of an inch (formeasurement of areas), is moved along a slide diametrically across the photograph,the diaphragm being nearly in contact with the photographic film, so that parallax isavoided. The distance of a spot or facula from the centre of the Sun is read offby means of a scale and vernier to 1-250th of an inch (corresponding to O'OOl of theSun's radius for photographs having a solar diameter of 8 inches). The position-angle is read off on a large position-circle which rotates with the photographic plate.The photograph is illuminated by diffused light reflected from white paper placedat an angle of 45° between the photograph and the plate below.
The following is the process of measurement of a photograph :—By means of thescrews attached to the plates carrying the pillars which hold the photograph, theimage of the Sun is centred as accurately as possible by rotation. The position-circle is then set to the readings 0°, 90°, 180°, and 270° m succession, and the scalereadings taken for the two limbs. The scale being so adjusted that its zero coincideswith the centre of rotation of the position-circle, the mean of. the eight readings forthe limb gives the mean radius of the Sun directly.
Q-BKENWIOH OllBEttVATIOJSB, 188(i. (Ь)
viii INTRODUCTION то GREENWICH SPECTKOSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.
At the principal focus of the photoheliograph are two cross-wires which serve todetermine the zero of position-angles on the photograph.
The zero of the Dallmeyer Photoheliograph, employed at Greenwich, has beendetermined throughout 1886 by the measurement of a plate which had been exposed tothe Sun's rays twice, with an interval of about 115 seconds between the two expo-sures, the instrument being firmly clamped. Two images of the Sun, overlapping eachother by a little more than the fifth part of the Sun's diameter, were therefore producedupon the plate, and the exposures having been so given that the line joining thecusps passed through the centre of the plate, it was easy to measure with the position-micrometer the inclination of the wires of the photoheliograph to the Sun's path, and asmall correction for the inclination of the Sun's path was then applied. The followingtable gives the correction for zero of position of the photoheliograph for the mean ofthe two wires as thus determined :—
Date,Greenwich Civil Time.
1885, December
1886, January
February
March
April
June
July
September
October
November
December
1887, January
h
10. 12
12. II
6. IO
24. ii
17. ID
б. II30. n
4- ID
28. IQ
20. IO
7.12
i. ii
13."
4.11
30. 11
17.11
Correction for Zero.
0 /
+ 0.17+ 0.53+ о. 14
- о. 4
- о. 7
- о. 8
-f 0.44
+ о. з
+ 0. II
+ 0. 6
4- о. 51
+ 0. 42
+ о. зо
+ о. 6
- 0-43
— I. О
MEASURES OF PHOTOGIIAPHS OF THE SUN. ix
It was found on October 4 that thé tube to which the wire-frame is attached hadbecome loose, and readily permitted a small motion of the wire-frame. The tube andwire-frame were firmly fixed in their places on October 5, before any photographswere taken.
In the use at Greenwich of the Dallmeyer Photoheliograph the position-circlehas usually been set to some convenient reading near that for zero, so that the wiresare respectively very nearly parallel and perpendicular to the circle of declination, anda correction for zero of position of the photoheliograph for the mean of the two wireshas been applied to the zero of the position-circle of the micrometer. The readings ofthe position-circle in 1886 have been as follows :—
From 1886, January 1 . . . 355°'6October 1 . . . 855°-7November 16 - - - 356°'4
The correction for zero of'position of the photoheliograph adopted for any date hasbeen the mean of the determinations of that zero made next before and next after thatdate. The zero of the position:circle of the micrometer has been determined from thereadings of the position-circle for the four extremities of the two wires. The resultingcombined correction is applied to all position-circle readings for spots and faculœ, so as.to give true position-angles.
In the use of the Photoheliographs at Dehra Dun and in Mauritius the position-circle has always been set to the zero as determined by allowing the diurnal motion tocarry a spot or the Sun's limb along the horizontal wire, and the accuracy of theadjustment has been tested at short intervals. No correction for zero of the photo-heliograph has therefore been applied for the reduction of the photographs taken inIndia or1 in Mauritius.
The unconnected distance from the Sun's centre for spots and faculœ is read offdirectly to l*250th of an inch by menns of a scale and vernier, the zero of the scale ofthe new micrometer being adjusted to coincide with the centre of the instrument.
Two sets of measures of the Sun's limb and of spots and faculté on each photographhave been taken and the mean of the two sets adopted.
No correction has been applied to the photographs on account of distortion.
The correction for the effect of refraction has been thus found, the Sun's imagebeing assumed to be sensibly an ellipse. The refraction being sensibly с tan г where
с = sin Ы"'5 = дщ nearly, and z is the apparent zenith distance, we shall have—
Vertical Diameter l — с вес* г _ , , з" I - с t a n гHorizontal Diameter l —
(b) 2
x INTRODUCTION то GREENWICH SPECTROSCOPIO AND PHOTOGRAPHIC RESULTS, 1886.
and thua the effect of refraction will be to diminish any vertical ordinate y by thequantity с tan2 г. Resolving this along and perpendicular to the radius vector r,and putting v for the position-angle of the vertex, we have for 8 r and 8 0, thecorrections to radius vector and position-angle for the effect of refraction—
<ч ^ •> •> /n \ о. ч 1 + cos 2 (0—v)g r =s + с . tan'' г x r. cos2 (0 — v) = + c . tan- z x r x —! ^ -,
g в = - c . tan2 z . sin (0 - t>) . cos (0 - u) = - c . tan2 г sm 2 (? "Д
The quantity 8 r thus found is the correction, on the supposition that ahorizontal diameter of the Sun is taken as the scale. But, as the mean of twodiameters at right angles has been used, the scale itself requires the correction*T> . 4. 2 T> i i l + cos2(00— v) . l + cos2(0„ + 90o— v) \ • , -r, , .,« R = -f c. tan2 z x R x \\ — «p-2 -+— Чг1 '- \= + £ c R . tan" г,
where R is the Sun's mean radius and 00 , 00 + 90° the position-angles of the twodiameters measured. Thus the final correction to r becomes—
g r = + с . tan2 z x r x ?o s 2jf-u ).
The quantities c tan2 г, — g , and g have been tabulated for use
as follows, с tan3 z being expressed in circular measure and in arc for application todistances and position-angles respectively :—
с tan2 г.
z.
0
8o
79
78
77
76
75
74
73
71
7i
In CircularMeasure.
•0089
•0073
•0061
•0052
•0045
•0039
•0034
•0030
•0026
•0023
In Aro.
,
31
*5
21
18
15
13
ill
10
9
8
ï.
о
70
69
68
67
66
65
64
63
62
61
In CircularMeasure.
•0021
•0019
•0017
•OOI5
•OOI4
•OOI3
•OOI2
•ООН
•ooio
•0009
In Arc.
,
7
6i
6
Si
5
4l
4
4
3
3
Z.
О
6o
58
*6
54
52
5°
45
4°
30
In CircularMeasure.
•0008
•0007
•0006
•0005
•0005
•0004
•0003
•O002
•oooi
In Arc.
,
3
2
2
2
2
I
I
I
О
MEASURES OF PHOTOGRAPHS OF THE SUN.
Factors for Refraction.
в— V
о
О
5IO
Ч2O
*530354045So556o6570758o8590
e— «
0
180185190195200205210
215
220
22S
230
«3524045250255260265270
Sin 2 (в — Г)
— 2
•oo
- -09
- 47
- <Z
5- '3*- -38- 43— 47- 49- '5°- 49- 47- 43- -38- -32- '25- 47- -09— -oo
Cos 2 (e— D)г
J, -50+ 49+ 47+ 43+ -38+ -32+ -25+ -17+ -09
•oo
- -09- ч?- -25- -32- -38- 43- 47- 49- 'So
в — v
0
95IOO
105IIO
"5120
i*5130135140HS150155160165170175180
e— «
0
275280285290295300 •3053103>532032533°33534°345350355360
Sin a (ö — r)з
+ -09+ -17+ -25+ -32+ -38+ 43+ 47+ 49+ -50+ 49+ 47+ 43+ -38+ -32+ -25+ -17+ -09+ -oo
Cos 2 (9 — 02
- 4947
- 43- -38- '32
- -25
- 47
- -09•oo
+ -09+ -17+ -25+ -32+ -38+ 43+ 47+ 49+ -50
The position-angle of the Vertex v is readily taken from a globe.
The distance from centre in terms of the Sun's radius given in the fourth columnis then readily found by dividing the measured distance r0, as corrected for refraction,by the measured mean radius of the Sun, R ; and the Position-Angle from the Sun'sAxis given in the fifth column is obtained by applying to the Position-Angle (fromthe N. point) corrested for refraction the Position-Angle of the Sun's Axis derivedfrom the " Auxiliary Tables for determining the Angle of Position of the Sun's Axis,and the Latitude and Longitude of the Earth referred to the Sun's Equator," byWarren De La Rue, F.R.S.
The sixth and seventh columns give the heliographic longitude and latitude of thespot, which are thus computed.* Let r be the measured distance of a spot from thecentre of the Sun's apparent disc, JÍ the measured radius of the Sun on the photograph,(/j?) the tabular semidiameter of the Sun in arc, and p, p' the angular distances of a
* Researches on Solar Physics : Heliographical Positions und Areas of Sun Spots observed tviththe Kew Photoheliograph during the years 18C2 and 1803, by W. De La Rue, B. Stewart, andB. Loewy. Phil. Trans. 18G9.
xii INTRODUCTION то GREENWICH SPECTROSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.
spot from the centre of the apparent disk as viewed from the Sun's centre and from theEarth respectively. Then we have —
тP = -ft (•#) ; and sin (p + p'} = -д,
whence p = sin"1 -5— p.
Log sin p and log cos p as computed from this formula are given in " Tables for theReduction of Sokr Observations No. 2," by Warren De La Rue, F.R.S. Then, if D,X are the heliographic latitudes of the Earth and the Spot respectively, referred to theSun's Equator, and L, l the heliographic longitudes reckoned from the ascending nodeof the Sun's Equator on the ecliptic, and x the position-angle from the Sun's axis, wehave by the ordinary equations of spherical trigonometry —
sin Л — cos p sin D + sin /o cos D cos x
sin (L — /) = sin x sin P sec X.
The quantities L and D are derived from Warren De La Rue's Auxiliary Tablesbefore referred to, in the computation of which the following formula have beenused —
tan L = cos I tan (© — N)sin D = sin I sin (© — N)
where I is the inclination of the Sun's Equator to the ecliptic, N the longitude of theascending node, and © the longitude of the Sun.
The position-angle x is given by the formula —
X = P + G + H
where P is the position-angle from the north point of the Sun, and G and H twoauxiliary angles given by the formulae —
tan G = tan ш cos 0tan H = tan I cos ( 0 — N)
where ш is the obliquity of the ecliptic.
It will be seen that G is the inclination of two planes through the line joining thecentres of the Earth and Sun passing through the poles of the Earth and of theecliptic respectively, and that H is the inclination of two planes through the same lineand the poles of the -Sun and of the ecliptic. The values assumed for I, N, w in thecomputation of the Tables are 7° 15', 74°, and 23° 27Л5 respectively.
The Heliographic Longitude of the Spot is found from /, the Heliographic Longitudefrom Node, by subtracting the Reduction to Prime Meridian, which is the Longitude
MEASURES OF PHOTOGRAPHS OF THE SUN. xiii
of the Node at the epoch of the photograph, referred to the assumed Prime Meridian,the latter being the meridian which passed through the ascending node at the epoch1854P0. The period of rotation assumed is 25*38 days.
The measures of areas given in the last three columns were made with a glassdiaphragm ruled into squares, with sides of one hundredth of an inch, and placednearly in contact with the photpgraphic film. The integral number of squares andparts of a square contained in the area of a spot or facula was estimated by theobserver, two independent sets of measures being made by two observers. The mean ofthe two sets of measures has been taken for each photograph. The factor for convertingthe areas, as measured in ten-thousandths of a square inch, into millionths of theSun's visible hemisphere, allowing for the effect of foreshortening, has been inferredby means of a table of double entry, giving the equivalent of one square for differentvalues of the Sun's radius, and for different distances of the spot or facula from theSun's centre, as measured by means of the position-micrometer.
The individual spots in a group have in some cases not been measured separately,but combined into a cluster of two or three small spots close together, the position ofthe centre of gravity and the aggregate area of the cluster being given. The actualnumber of individual spots is usually stated in the Notes.
§ 15. Ledgers of Areas and Positions of Spot-groups upon the Surfs Disk deduced fromthe measurement of the Solar photographs for each day in the year 1886.
In these Ledgers the daily results for each group are collected together from themeasures of the individual spots and given in a condensed form. The first columngives for each day, on which the group was observed, the Greenwich civil time atwhich each photograph was taken, expressed by the day of the month.(civil reckoning)and the decimals of a day reckoning from Greenwich mean midnight. The secondand third columns give the sums, for each day, of the projected areas of all theumbra and whole spots comprised in the group, the projected area being the area asit is measured upon the photograph, unconnected for foreshortening, and expressed inmillionths of the Sun's apparent disk. The fourth and fifth columns give the sumsfor each day of the areas of all the umbra and whole spots comprised in the group,corrected for foreshortening, and expressed in millionths of the Sun's visible hemis-phere. The sixth and seventh columns give the mean longitude and latitude of thegroup, found by multiplying the longitude and latitude of each separately measuredcomponent of the group by its area, and dividing the sum of the products by thesum of the areas. The last column gives the mean longitude of the group from the"entrai meridian, and is found by subtracting the longitude of the centre of the disk
xiv INTRODUCTION то GREENWICH SPECTROSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.
from the mean longitude of the group. At the foot of these daily results for eachgroup are given the mean areas of umbra and whole spots and the mean longitudeand latitude for the period of observation.
§ 16. Total Projected Areas of Umbrce, Whole Spots, and Faculce, for each day(uncorrected for foreshortening}, Mean Areas of Umbrce, Whole Spots, andFaculce, and Mean Heliographie Latitude of Spots, for each Synodic Rotation ofthe Sun, and for the Year 1886.
This section requires no further explanation.
W. H. M. CHRISTIE
«, April 25.
ROYAL OBSERVATORY, GREENWICH.
SPECTROSCOPIC OBSERVATIONS
MADE AT THE
EOYAL OBSEEVATORY, GREENWICH,
1886,
OBSERVATIONS, 1880. б А
POSITION-ANGLES AND HEIGHTS OF SOLAR PROMINENCES, OBSERVED WITH THE SPECTROSCOPE, AND OBSERVATIONS
POSITION-ANGLES and HEIGHTS of SOLAR PROMINENCES, observed with the SPECTROSCOPE, and OBSERVATIONS of BRIGHTLINES in their SPECTRA, made at the ROYAL OBSERVATORY, GREENWICH, in the Year 1886.
Civil Time commencing at Greenwich Mean Midnight and counting from о to 24 hours is used throughout.
Note.—The position-angles reckoned from the north pole of the Sun's axis in the direction N., E., S., W., N., are given for the twoextremities of the prominence.
The extreme height in seconds of arc is given for each prominence. Where the estimated brightness of any of the brightlines is given, the average brightness of the line has been estimated in terms of the brightness of the corresponding part of thesolar spectrum. The lines are usually fainter at the extremity than at the base. Where the estimated breadth is given, theaverage breadth of the line has been estimated in terms of the breadth of the corresponding dark line in the solar spectrum,except in the case of the bright line D3, the breadth of which is estimated in terms of the dark line C. The bright lines areusually narrower at the extremity than at the base. On each occasion the entire limb of the Sun was examined first on theС line only, and the heights and position-angles of the prominences were determined. If possible a second examination of theentire limb was then made in which the entire spectrum from В to F was examined at each prominence. The first time given forany prominence is the time when it was first seen ; the second time, the time of the second examination.
The " Half-prism " Spectroscope with a train of two " half-prisms " was used throughout. For viewing the prominences andchromosphere the spectroscope is reversed end for end, the slit and eyepiece being interchanged, so that the pencil is incidenton the oblique face and emerges at the perpendicular face of each " half-prism." Thus the breadth of the spectrum-lines,considered as monochromatic images of the slit, is diminished, and greater purity of spectrum is obtained. In order to view aprominence in its just proportions, the breadth can be afterwards magnified by means of a small "half-prism" (direct-vision)placed between the eyepiece and the eye.
A displacement of ï tenth-metre corresponds to a motion in the line of sight of 28-4 miles per second for the С line, of36-1 miles for the Ъ lines, and of 38-4 miles for the F line.Observer M.
Greenwich.Civil Time,
1886.
Position-Angle fromSim's A™.
Height inSeconde of Aro.
D,
Brightness.
D.
Breadth.
474
BEMARKS.
Apr. 27. ii. 26u. 58ii. 24n. 56II. 22
11.42
II. 2O
11.39
II. IO
11.37
40.2544.3246. 749-3755.»02. 17
71. 774. 786.5789.37
43434i41
4853343i2424
43
38
}*•19
19
Straight jet.
Fine bright jet bending over towards the north.
Double jet.
The entire limb of the sun was examined twicewith the slit radial. The limb was too un-steady for any observations of 1474 К and Fto be made.
Apr. 12. 2O
12. 30
12. 15
12. 28
12. l6
12.23
108. 52109. 32114.32Il8. 22
120. 7121. 32
Ч •9
29
29
Ч
24
24
i
A
Straight jet. 12" 28'". This prominence haschanged in shape since it was first seen. Itis still a straight jet, but has spread out at thetop like a palm-tree.
Straight jet.
The limb of the sun was unsteady, makingobservation difficult. On all the three fore-going prominences neither the D nor Ъ linescould be seen distinctly reversed, probably onaccount of the white haze in which thesun was involved, and the unsteadiness ofthe limb ; yet these dark lines of the skyspectrum grew faint close to the sun's limb.1474 K was seen distinctly reversed onthe second prominence ; on the two othersit was not actually reversed, but the darkline of the sky spectrum all but disappearedclose to the limb.
OF BRIGHT LINES IN THBIB SPECTRA, MADE AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR 1886.
GreenwichCivil Time.
1886.
d h mApr. 30. 12. 1 8
1 2 - 3 3
May ï. ii. 2512. 13n. 912. 15
п. ч11.45ii. i6"• 53n. 18ii. 56n. 5612. 2
II. 19
ii. 59II. 21
12. 5
May 3. n. 311.17ii. 5n. 19
May 6. 12. 512. 17
Position-Angle fromSun's Axis.
298. 12300. 2
73-5<575-3182. I91. I
100. 36
109. 26114.41117. 51118. 51122. 46
124. 21
125.41
124.36
126. 21
208. 46
277. 20
123.24
125. 12
126. 2
127. 52
48. 1 849-37
Height inSeconds of Aro.
0
3Í17
17Ч22
Ч
So4829
29
So29
22
22
2б
41
29
29
29
34
1917
D,
i;
17ч
48
29
29
22
41
34
Ьi»
t-
к
H
4
5
...
...
...
...
2
2
F
ti
Ч
ч
48
...
• •
31
29
34
Ч
Brightness.
0
i
I
2
4
1.*,*
è2
i
I
i
D,
i
i
2
*
i
.
s"1í
4i
1*
*
•g4
4
...
...
...
...
A
Л
F
42
i
...
...
...
...
I
Лi
A
Breadth.
С
4
f
«i
£
4,*iS
4'4
èf
è
D,
.
,
I
*i,s,3
4i
iif
1
'g4
...I
...
...
...
...
...I
I
F
...
i
i
i
...
...
i4
ii
i
REMARKS.
Bright straight jet. Not seen on F, D„ D„ u, or1474 K lines with radial slit, but seen on Fand 474 К with the slit tangential.
The entire limb of the sun was examined twicewith the slit radial and tangential from В toF. With the tangential slit, C, Dj, 1474 Кand F could be seen on all the prominences,but neither D„ D, nor the b lines could bedetected on any of them. The chromosphereaveraged 8"'5 in height.
Fine straight jet, not seen in a previous search.
Long, low, and brilliant prominence. TheС and F lines were displaced towards theblue by about ^ tenth-metre, indicating amotion of approach of about ii miles persecond. The b lines appeared to be reversedto a height of about 5".
Fine straight jet.
Not seen on th« F line.
Not seen on the F line.
Small straight jet, not seen in first search. Notseen on the F line.
Not seen on the F line.
Fine jet ; brilliant ; probably a metallic erup-tion. i2h. 5m. A slight displacement wasdetected on the upper part of the prominenceon the С and F lines. On both lines it wastowai-ds the red, and the amount was roughly^ tenth-metre on F, and £ tenth-metre on C,indicating a motion of recession of about9^ miles per second. The prominence hadchanged its shape since the first search, asecond jet having sprung up, forming withthe first jet a complete arch. The aboveobservations of the С and F lines were takenon the first jet. The extreme point of thearch on the second jet was 41" in height.
The entire limb of the sun was examined twicewith the slit radial.
Straight jet.
Straight jet.
The entire limb of the sun was examinedtwice with the slit radial. The chromosphereaveraged 8"-5 in height. The sun was inwhite haze, and its limb was boiling.
A small straight jet. This prominence was theonly one which could be examined on anyother line but C.
П А З
POSITION-ANGLES AND HEIGHTS OF SOLAR PROMINENCES, OBSERVED WITH THE SPECTROSCOPE, AND OBSERVATIONS
GreenwichCivil Time,
1886.
d b m
May 6. 12. 7
12. 8
12. IO
May 7. u. 5012. 19
I I . 5 I12. 21
11.5212. 20
II. 56
12. 5
11.57
12. О
NOV. 4. 12. 48
12.52
13. 19
12. 5413. 2012.5513.24
12.57
12. 58
13. о
Position-Angle fromSun's Axis.
J 64. 36 )
t 66.57Í1 88.171 89-42
( 128.17\ 13*. *
48. io49.5060. 4061. 5063. о64. 50
254. 20
257. io .
j 259. io \\ 263. io j( 295. io íl 296. 40 j
1 SÍ'481 56. 2
80.2783. 7
86.4588. о98. 38 )
104.40 )( 123.50 11 »S- S« f( 126.44)\ 128. г\í H5- 30 11 249- o í
Height inSeconds of Aro.
С
У/
12
19
79
1722
3124
1712
17
H
24
34
363455
29
'9
19
D.
Il
j н
H31
14
h*
'£*ti
?
...
5
2
F
«
• •*
19...
12
24
Brightness.
С
t
i
1
li
D,
k
i
i
3
í
s è
'g4
...
' ?...
...
...
F
Л
...
i
\
Breadth.
С
i
\
i
li
\
D.
*i
è
i
t
H74К
?...
...
...
F
I
...
2
I
REMARKS.
•
Chromosphere a little higher than usual, andfeathery.
Straight jet.
Fine prominence. Partly detached.
The entire limb of the sun was examined oncewith slit radial, on the С line only. The sunwas in much haze.
Straight jet. Lines 1474 К and F not seen.
Straight jet.
Straight jet;
Bright prominence. This jet, when first seen,•was suspected to be a metallic eruption, fromthe vividness and breadth of the bright С line.The Dj line was seen distinctly bright for 7"on the limb of the sun. The sun was inmuch white haze, and only a brilliant pro-minence could have shown through it.The solar spectrum did not seem morethan three times as bright as the skyspectrum. It was remarkable that, whereasthe D3 line is usually fainter and narrowerthan the С line, in this instance it wasbrighter and about as broad. Both С and Fcould be traced about 2" bright on the sun,the narrow pointed dark line appearing tobisect the bright line. At i2h. ззт. both Dlines were distinctly reversed 5" in height.654 K was seen brightly reversed. Height12 , brightness £ ; breadth half of the dark Сline.
Straight jet.
Faint jet ; could not be observed on any otherline but C.
The entire limb of the sun was examined twicewith the slit radial.
Straight jet. Not seen in second search.
Partly detached. The sun was in much hazeat the second examination. Seen only on theС line.
Bright prominence. Partly detached. TheD„ D„, b„ Ъа lines were reversed 2^" in height.
Sun in haze at second examination. Seen onlyon С line.
Bright straight jet. The sky clouded over beforea second examination could be made.
Bending over towards the North.
Faint jet.
The entire limb of the Sun was examined oncewith the slit radial on the С line and partof the limb a second time on the entirespectrum from В to F.
OF BBIGHT LINES IN THHIB SPECTRA, MADE AT THE ROYAL OBSBRVATOBY, GREENWICH, IN THE YEAR 1886.
GreenwichCivil Time,
1886.
il ii ni
Dec. i. n. i
ч- 3
11.16
Position-Angle fromSun's Axis.
1 233- 3°( *3б. 71 246. 71 H«. 7j 3 1 2 . 2 71 3H- о
Height inSeconds of Aro.
С
ЧгбЧЧ3434
D.
I* 6
!*}•••
к
...
...
F
17 '
24
...
Brightness.
С
iir
\
A
D,
i
i
•g,
...
F
Л
iTiT
Breadth.
С
i
3;r
»
D,
i3
i
T
...
F
1
I
REMARKS.
Straight jet.
Straight jet.
Faint prominence. Seen on no other line but C.Not seen in fírst search.
The entire limb of the Sun was examined twicewith the slit radial.
OBSERVATION of the SPIÎCTRUM of a Sun Spot made at the ROYAL OBSERVATORY,GREENWICH, in the Year 1886.
SPOT-GROUP, No. 1880.1886, May 6.
A fine group of spots was seen near the centre of the sun, and these, as examined on the С and F lines, showed aremarkable uprush of bright hydrogen. The F line in particular was reversed in places scattered over the entirearea of the group, but it was especially brilliant over the principal spot of the group. Over the nucleus of this spotthe F line was greatly broadened, being quite three times its usual breadth, and being seen both as a dark and as abright line. The dark portion appeared to be displaced about ^ tenth-metre towards the red, corresponding to amotion of recession, or a downward motion, of about 13 miles per second. The bright portion appeared to bedisplaced by about the same amount towards the blue, corresponding to a similar motion of approach, or an upwardmotion. The bright part of the line was in the shape of a crescent, of which the convex side was turned away fromthe mean place of the F line, and towards the violet. In some parts of the spot the F line had a peculiar appearance,the bright line being narrower than the dark line, and lying diagonally across it, inclined to it at a small angle. TheС line was reversed over a more extensive area even than F, but did not show displacement or twisting so well.
Amongst the dark lines observed to be broadened over the spot were the following :—
DI, Ds, Sodium, more than double their usual breadth.b\ Ьг &4 Magnesium \X 4890, 4891, IronA 4918, 4920, do.A 6492, CalciumA 6462, do.Л 6438, do.A 6 i 6 i , do.A 6121, do.A. 6101, do.
DS and 1474 К were not noticeably affected in any way.
The above observations were made by Mr. Maunder with the half-prism Spectroscope mounted on the South-East Equatoreal. The Spectroscope was used in the reversed position, with a train of two half-prisms, giving underthese conditions a dispersion of about 6° from A to H, the spectrum being very pure. A power of about 28 wasused on the viewing telescope.
The number of the spot-group is taken from the Photographic Results.
1886, May 7.The same group of spots was again examined with the Spectroscope arranged as on May 6, but no indication of
reversal of any of the lines was detected, nor were any lines noticeably broadened. Observer : Mr. Maunder.
Double their usual breadth.
MOTIONS OP STARS IN THE LINE OP SIGHT, INFERRED FROM SPECTROSCOPIC OBSERVATIONS
MEASURES of DISPLACEMENT of LINES in the SPECTRA of STARS, MOON, AND PLANETS as compared with those of TERRESTRIALELEMENTS, and CONCLUDED MOTIONS in the LINE of SIGHT, from OBSERVATIONS at the ROYAL OBSERVATORY, GREENWICH,in the Year 1886.
The day specified in the first column is the Civil Day, and the hours and minutes are those of Greenwich Civil Time, commencing atGreemvich Mean Midnight and counting from о to 24 hours.
Note.—The motion corresponding to the displacement actually observed may be inferred from the Concluded Motion by adding theEarth's Motion algebraically.
The " Half-prism " Spectroscope was used throughout. Each " Half-prism " is compound, and is composed of a flint " half-prism "(i.e., the half of an isosceles prism, cut by a plane perpendicular to the base,) and a crown prism, cemented on the emergent faceso as to form the half of a direct-vision prism. With one such half-prism a dispersion of about 18 ° from A to H, equivalentto that produced by four flint prisms of 60°, is obtained ; and with a train of two a dispersion of about 80°, equivalent to thatproduced by sixteen flint prisms of 60°. One half-prism has been always employed. The dispersions have been inferred frommeasurements of the distance between b^ and bt as compared with the wavelength measure.
irer- of the micrometer corresponds with one "half-prism" to 10-4 tenth-metres or 375 miles per second for the b lines, and to7-91 tenth-metres or 304 miles per second for the F line.
irev- of the screw for opening the slit corresponds to o-oi inch, or about 10".
The slit lies north and south when the reading of the Position Circle is 6°.
The velocity of light has been taken as 186,660 miles per second, and the distance of the Sun as 92,250,000 miles.
The estimations of displacements have been made by indirect comparison with the comparison-line, except where the contrary isexpressly stated. The displacement is estimated in terms of the breadth of the comparison-line.
The sign + denotes a displacement towards the red or a motion of recession, — a displacement towards the blue or a motion ofapproach.
Date, 1886,GreenwichCivil Time.
d h mJan. 16. 17. 41
17.4417-4-717.50!7. 54'7-5718. ï18. 418. 818. ii
Jan. 1 8. 22. 2822.3122.3522. 3823- 323. 823. 18
Jan. 19. 22. 422. 24
Jan. 27. 1 8. 818. to1 8. n18. 1318. 1518. 171 8. 18
iMMMMMMMMHM
NNNNNNN
MM
MMMMMMM
Object.
Venus»j?»,))», ,
Moon, ,» ?, ,
Procyonî 11 ,
Sirius» ?
Venus
Line.
FFFFFFFFFF
FFFFFFF
FF
FFFFFFF
Widthof
Slit.
O'l COд 50-150
0450O-I5O
0-150
0-1500-150O-I50
0-150
0-150
o* i соw t ^w0-1500-1500-150O'l COw 1 }W
0-1500-150
O'l COw * Э0-150
O"2OI
O-2OI
0-201
0-201O-2OI
0-201O-2OI
Displacement.
Measured.
— О 'O4.itTT
— 0-027— 0-008— 0-058— 0-027— O-O2O—0-008—0-029
o-ooo— O-002
— O'OI Сw vi 5
+ 0-037
+ 0-027— 0-017
+ O'OI2
+ 0-OI5
— O-OO9
— O'O2O
— O-O4I
— O-O74.w ""VT
-0-158
— O-O26
— 0-003— 0-017
— 0-022-0-034
Estimated
_ 1
- A— i— ï_ 1- A- A
оо
ооо
1ттт
- í
_ 1- л
оо
— л_ ^.
Earth'sMotion inMiles perSecond.
-4- I'C~ * 5+ «'S+ !'5
•4- A.'A.~ T T
+ 44
Concluded Motionof Stare in Miles per
Second.
Measured.
— I « -4.* У т- 8-2- 2'4
— i7'6- 8-2- 6-1- -*ч- 8-8
O'O
- 0-6
- 4-6+ п'з+ 8-2- 5'i+ *'i+ 3-1- 4'2
— IO'C•" 5- 16-8
— 22"C1.1, j
— 48-0
- 7'9- 0-9— 5<J
- 6-7- 10-3
Estimated
— 1 1-6
- S'«- 2-9- 19-4- H'5- H1!- 5'8- 2-9
o-oo-o
— I'C1 J
- i-s- i'S
— IO"2
— 1 6'0
— 16*0— 24-0- i-8
o-oo-o
- 4-8- 5-6
REMARKS.
Calculated motion — 6-7 miles per second.
Position Circle, 169°.
The coincidence of the two spectra appearedperfect.
Spectrum bright and fairly steady.Star-line fairly distinct.
Position Circle, 1 86°.
Spectrum very tremulous. Star seenthrough cloud.
Position Circle, 1 86°.
Spectrum bright but tremulous. Thelater observations were made under moresatisfactory conditions than the earlier ;the line in the spectrum of Venus beingvery distinctly seen during the lastseven observations.
Calculated motion, — 5-4 miles per second.
AT тнв ROYAL OBSERVATORY, GRHBNWICH, IN тнв YBAR 1886.
Date, 1886.Greenwich
Civil Time.
d li inJan. 27. 1 8. 20
l8. 21
18. 2318.59I9. 2
19. 6
19. 919. 1419. 1819.4119.4619.4919.562O. 10
20. 15
20.3520. 4020. 42
20. 4520.4920.5521. I
21. 4
21. 8
21.1321. 17
21. 21
21. 24
21.27
21.32
21.3521.3721. 40
21. 42
21.45
21.48
21. 50
21. 52
21.5421. 56
21. 58
22. 9
22. II
22. 13
2 2 . 1 5
22. 21
22. 25
22.31
22.35
22.3922.45
22.492 2 . 5 1
22.53
22.55
22.57
22.59
Jan. 28. 12. 2912.3412. 38
12.4112.45
i0
MMыMHMMMMMMMMMMMMMIIHMMMMMMMMMMMMMHMMMMMMMMMMжMMMMMM
MMMMHM
MMMMM
Object.
Venus> >
J )a Pegasi
) >> t) >
a Andromedse
ß Persei> >
a Persei> >
Aldebaran? »
Rigel» ï
y Orionis
ß Tauri> >
8 Orionis> >
< Orionis
f Orionis» »
к Orionis» >
y Geminorum
Sirius) >ï ») )) »
Capella» «» »
ß Aurigas? »
Castor
Pollux'> »
Procy on
Sky» »i *t »> >
Line
FFFFFFFFFFFFFFFF.FFFFFFFFF.FFFFFFFFF'FFFFFFFFFFFFFFFFF
FFFFFF
FFFFF
Widthof
Slit.
rO'2OI
0-201O-2OI
0-154
0-1540-1540-154
0-154
0-1540-154
0-154
0-154
0-154
0-154
0-154
0-154
0-154
0-1540-154
0-154
0-154
0-1540-154
0-1540-154
0-154
0-154
0-1540-1540-154
0-1540-154
0-1540-154
0-1540-154
0-154
0-154
0-154
0-154
0-154
0-154
0-154
0-154
0-1540-154
0-1540-1540-154
0-154
0-154
0-154
0-1540-1540-154
0-1540-154
0454
0-154
0-154
0-1540-154
Displacement.
Measured.
ï— 0-063- 0-054+ O-OO2
— O-O5I
+ o-oo ï— 0-084-0-155- 0-073— o-oo ï- 0439— 0-08 1— 0-140— 0-030+ 0-064+ 0-194+ 0-103+ 0-183+ 0-113+ 0-009— 0-088— 0-071+ 0-109+ 0-026+ 0-08 1+ 0-098+ 0-072+ 0-094— 0-078+ 0-009-0-335— 0-217— 0-032+ 0-006- 0-075— O'l IO— 0-172— 0-106- 0-059— 0-103— O-O2I
- 0-059— O-OI2
+ 0-057
+ 0-058
+ 0-OI4
— 0-065
- 0-094
— 0-I2Ó
— 0-106— o-i io— 0-151
— 0-068— o-oio— 0-016+ 0-016— 0*092— 0-016
— 0-002
+ O-O2I
+ O'OIO
— 0-003
— O-OO7
Estimated.
- 1T
o- A
0
- 1- £0
- i_ Z
T!
+ i+ i+ í+ f+ l
o
+ 1+ A+ A+ A+ *+ if
0— 1- *
то
3.
- %- $- î~ А~4- А
г t+ А
+ f+ 5
_ 9
'í+-t
O
Earth'sMotion inMiles perSecond.
+ 12-4+ 12-4+ 12-4+ 12-4+ 154+ 154+ 16-8+ 1 6-8+ 15-1+ IS ' I+ 16-3+ 16-3+ 12-9+ 12-9+ 13*6+ i3'6+ I3'8+ I3'8+ 127+ 12-7+ 124+ 12-4+ 12-1
+ I2 - I
+ IO-9
+ IO-9
+ 9'5
+ 9'5
+ 9'5
+ 9'5+ 9'5+ 9-5+ 6-3+ 6-3+ 6-3+ 6-3+ 6-3+ 6-3+ 12-9+ 12-9+ 12-9+ 12-9+ n-3+ u'3+ 6-2+ 6-2+ 5'3+ 5'3
+ 44+ 44+ 44+ 44+ 44+ 44
Concluded Motionof Stare in Miles per
Second.
Measured.
- 19-1— 16-4+ 0-6-27-9— 12-1
- 37'9
-59-5- 37'6- iS ' i- S9'°-41-4- 57-6-24-2+ 3-1+ 42-6+ 18-4+ 427+ 20-7— 10-9-40-5-354+ 20-4- 4-8+ 12-2
+ 174+ 9'8+ l6'5
- 34'6- 8-2
- 111-3- 754- 19-2- 77- 32-3-42-9-58-6-38-5- 24-2-37-6- 127- 24-2-16-5+ 44+ 47- 8-6- 31-0- 39'9+ 32-1+ 26-0-387- S I 'S
- 25-1- 74- 9'3+ 0-5- 324- 9'3
- 0-6+ 6-4+ 3-0- 0-9— 2-1
Estimated
- 9-6- 6-9
O'O— 19-0- 12-4- 34'3-387-31-8- 154- 49'6-43-1-414- 28-2+ o-i+ 16-5+ 9'°+ 26-5+ 8-3— I3'6— 40-1-357+ 13'6- 6-1+ 7'3+ 7'3+ 4'*+ Ч'2
- 27-3— 10-9-75-I— 62-0- 25-9- 9'5-35-8-35-8— 50-0-457— 26-0- 39'i- 12-9- 194- I9-5+ 6-8+ 3'5- 6-3- 37-6-44-1+ 37-5+ 26-6-49-0- 54'5
- 3°7— 1 ГО
— 1ГО
+ 2-2
— 26-3
- 44
REMARKS.
Spectrum very faint and tremulous.Measures made with great difficulty.
Spectrum fairly steady.
Spectrum fairly bright and steady. Defi-nition fair.
Spectrum fairly bright and steady. Defi-nition fair.
Spectrum bright but tremulous. Star-lineseen fairly well.
Spectrum bright but tremulous. Star-lineseen very well.
Spectrum bright and steady. Star-lineseen fairly well.
Spectrum somewhat faint and tremulous,but star-line seen fairly well.
Spectrum somewhat faint and tremulous,but star-line seen fairly well.
Spectrum somewhat faint and tremulous,but star-line seen fairly well.
Spectrum faint and tremulous, but star-line seen fairly well.
Spectrum bright and steady. The star-lineis broad, diffused and difficult to bisect.It was seen fairly well on this occasion,and the difficulty of bisection was duesimply to ite nebulous character.
Direct comparison showed a displacementof about half the breadth of the com-parison-line towards the blue, equivalentto a motion of approach of 39-1 milesper second.
Spectrum bright and steady. The star-line,which is rather faint, was seen withunusual distinctness.
Spectrum faint and tremulous. Star-lineill-defined.
Spectrum tremulous. Star-line very ill-definod.
Spectrum bright and steady. Definitiongood. Star-line seen well. Displacementevidently large and towards the blue.
Spectrum bright and steady. Definitiongood. But the star-line from ite peculiarcharacter was difficult to observe. Thedisplacement was evidently very small.
Position Circle, 1 86°.
The sky spectrum was seen very well. Thecoincidence of the two spectra appearedperfect.
Position Circle, 186°.
MOTIONS OF STARS IN THE LINE OF SIGHT, INFERRED FROM SPECTROSCOPIO OBSERVATIONS
Date, 1886.GreenwichCivil Time.
d b mJan. 28. 2i. 59
Feb. 1.18.4918.55
19- 319. 819.13if). 1819.2319. 2819-4319.4819-5520. ï20. 132O. 21
20. 252p. 30
20.33
20.39
2O. 42
2O. 48
Feb. 2. 12. о12. 4
12. 712. II
12.15
March 3. 19. 55!9-59
20. 10
20. 13
2O. 2O
2O. 24
20. 20
2O. 29
2O. 40
20.43
20. 52
20. 56
21. О
21. 4
21.3721. 41
21.4321.4521. 46
21.472i. 562i. 5822. О
22. 2
О
N
Mil
MMMMMMMMMMMM
HM
MMMH
MHMMM
MM
HMMMMHHMMM
MMMMMMMMMMMM
Object.
Procyon
л Pefirasi . . .» »
•y PecasiJ )
a Andromedffi .> »
ô Arietis .. .
ß Perseií >
a Persei» >
Rigel> >
•y Orionis» ?
/î Tauri» >
y Geminorum .í >
Sky> >> »> »5 J
Rigel5 )
y Orionis
ß Tauri» >5 >
» 5
Aldebaran» »
Capella» »
ß Aurigse> »
Sirius» )9 J
> »ï >» »
Procyon> J) >) 5
Line.
F
FF
FFFFFFFFFFFF
FF
FFFF
FFFFF
FF
FFFFFFFFFF
FFFFFFFFFFFF
Widthof
Slit.
0-154
0-1040-104
0-1040-1040-1040-1040-1040-1040-1040-1040*1040-1040*1040-104
0-1040-104
0-1040-1040-1040-104
0-1040-1040-1040-1040-104
0-1900-190
0-1900-1900-1900-1900*1900-1900-190O'igo0-1900-190
0-1900-1900-1900-1900-1900-1900-1900-1900-1900-1900-1900-190
Displacement.
Measured.
r+ O-OO2
— 0-017
-0-145
+ 0-025
+ 0-03I
— 0-228—0-171—0-188-0-253-0-037—0-038—0-005—0-032+ 0-071+0-055
+0-138— 0-056
—0-029—0-041—0-168—0-048
+ 0-024+0-005+ 0-026— O-OI2
+ O-OIO
+ 0-078
+ 0-I55
+ O-O40
+ 0-II9
— 0-090
+ o'o6o—0-086— 0-056+0-198+0-087— ОЧО2
-0-144
— 0*170
— 0-106+0-035-0-057—0-230—0-064—0-060—0-138-0-149-0-034-0-073— 0-076
Estimated.
о
-t- î
0
I J
— *
- A
+ I
+ f
~ т
— 1-
- 1
+ i
+ ï
+ А+ f
II+ \ -
+ Л
~ ЗГ- А
'-f
Earth'sMotion inMiles per
Second.
+ 47
+ II-2
+ II-2
+ I5-0
+ 1 5'°+ 147+ H7+ 18-4+ 184+ 17-1+ i7'i+ 15-6+ 15-6+ 137+ 137
+ 14-6+ 14-6
+ 4-8+ 4-8+ 10-9+ 10-9
+ 1 6-0
+ 16-0
+ 17-8+ 17-8+ 18-4+ 18-4+ 18-4+ 18-4+ 18-5+ 18-5+ 17-1+ 17-1
+ 16-8+ 16-8+ 12-6
+ 12-6
+ 12-6
+ 12-6
+ 12-6
+ 12-6
+ I3-6
+ I3-6
+ I3-6
+ I3-6
Concluded Motionof Stare in Miles per
Second.
Measured.
- 4'i
16-1- 55-2
- 74- 5-6-83-9-66-7-75'5-95-2- 28-4-28-7- 17-1-25-3+ 7'9+ 3-0
+ 28-2- 307
-23-6- 27-2— 61-9-25-5
+ 7'3+ 1-5+ 7'9- 3'6+ 3-0
+ 77+ 314
- 57+ 18-3-457— O-2
-44'5- 354+ 41-6+ 7'9— 48-1— 60-8
-68-4-49-0— 2-0
- 29'9— 82-4- 32-0-30-8- 54'5- 58-9- 23-9-35-8- 367
Estimated.
- 47
-15-8- 344
+ 3-6- 15-0-457— 42-6— 41-6- 494— 32-6-287— 20-2
- 3I'I
+ 4'9- 44
+ 21-2
— 29-2
-24-1— 26-4-41-9— 26-4
+ 5'3+ 12-3
- 9'3+ 10-5-46-7- 9'9- 397-43'9+ 24-0+ 2-8-454- 59'6
- 59'3— 50-8- 4'i— 29-6- 55'i-40-9-38-1-46-6- 56-1- 34'9- 39'i- 34'9
REMARKS.
Position Circle, 1 8 6°.
Star low. Spectrum faint and verytremulous. Definition bad. Measuresrough.
Spectrum faint and tremulous. Definitionbad. Star-line seen with great difficulty.
Wind high. Spectrum fairly bright buttremulous. Definition poor.
Wind very high. Spectrum tremulous.Definition bad.
Spectrum fairly bright and steady. Defini-tion fair.
Spectrum fairly bright but tremulous.Definition poor.
Wind very high. Spectrum bright buttremulous. Star-line seen with greatdifficulty.
Wind very high. Spectrum fairly brightbut tremulous. , Definition bad. Star-line seen with great difficulty. Measuresrough.
Wind very high. Spectrum bright buttremulous. Definition bad.
Wind very high. Spectrum bright buttremulous. Definition bad.
Position Circle, 6°.
The coincidence of the two spectra appearedperfect.
Position Circle, 6°.
Spectrum fairly bright and steady butdefinition poor. Star-line seen withgreat difficulty.
Spectrum faint but fairly steady. Defin itionpoor. Star-line seen with great difficulty.
Spectrum fairly bright and steady butdefinition poor.
Spectrum bright and fairly steady, butdefinition poor. Star-line faint.
Spectrum bright. Definition fair. Thedisplacement was distinctly towards theblue. Star line seen fairly well.
Spectrum fairly bright and steady. Defini-tion fair.
Star in light cloud. Spectrum faint andtremulous. Definition bad.
Position Circle, 6°.
AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR 1886.
Bate, 1886.Greenwich
Civil Time.
•чг J h mMar. 4. i2. о
12. J
12. IO
12. 15
12. 2O
Mar. 1 7. 20. o20. IO
2O. 15
20. 25
20. 38
2O. 42
21.3521.38
21.44
21. 46
21.47
21.49
21. 50
22. 3
22. 7
22. IO
22. 13
Mar. 23. 2i. 821. 15
22. 27
22.33
2 2 . 5 5
гг. oЧ- 523. IQ
Mar. 24. i2. io12. 1412.17
April 6. 2i. 3021. 40
22. 15
22. 25
22. 40
22. 50
23. o23. 523- 17
2 3 - 2 523.40
23.45
Apr. 22. 22. 45
Obs
erve
r.
I
MMMMM
MMMMMMMMHMMMHMMMM
NNNNNNNN
NNN
NNNNNNNNNNNN
N
Objeot.
Sky» ïj ?1 1» >
Aldebaran» >
Capella> »
a Orionis
Pollux'ï »
Moon.) »> »» »? )
Mars> i» »i >
Capella
Pollux'» »
]Marg» »> »» »
Sky> 9
> )
Capella> >
Procyon> j
Castor> >» >
Pollux!.'.> >
Marsï »
Mars
Line
FFFFF
blbihbibtЙ4
bibibibibiblbibibibibi
bibibibibibibibi
bibibi
FFFFFFFFFFFF
F
Widthof
Slit.
r0-190049004900-1900-190
0-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-153
0-1900-1900-1900-1900-1900-1900-1900-190
0-1900-1900-190
0-2180-2180-2180-21 8
0-2180-2180-2180-2180-21 8
0-2180-2180-218
0-137
Displacement
Measured.
г
+ 0-007+ 0-030+ O-OOI
+ О-ОО7— o-oii
+ 0-080+ 0-085+ 0-205+ 0 - I I O
+ 0-182+0-094— 0-028-0-039— o-oii—0-008— 0-016+0-025+ 0-008+ 0-058— 0-014+0-054+0-017
—0-013— 0-009— о-ооб-0-031— о-обб— o-oiS+ 0-010
+ 0-010
—0-009— o-oio— o-oo i
+0-052+0-057—0-036+ 0-010
+ 0-010
—0-031+0-041+ O-O2I
— 0-042— 0*040+ 0-005+ O-OIO
+O'oo6
Estimated
+ i+ 1+ I
i t+ *
-t
lí+ A
0
оо
~~ 8-ï.о0
+ i+ t
+ А+ л+ I+ А- i- i
о+ А
0
Earth'sMotion inMiles perSecond.
+ 174+ 174+ 16-9+ 16-9+ 17-8+ 17-8+ 16-8+ 16-8
+ 1 6-6+ 16-6+ 174+ 174
+ I5-I+ I5-I+ I7-5+ 17-5+ 1 8-0+ 1 8-0+ 1 8-0+ 1 8-0+ 18-1+ 18-1
Concluded Motionof Stars in Miles per
Second.
Measured.
+ 2-1+ g''+ 0-3+ «'I
- 3'3
+ 12-6
+ 14-5+ 60- 1
+ 24-4
+ 50-S
+ I7-5
- 27-3
- SI 'S
- 4'1- 3-0_ 6-0+ 9'4+ 3-0+ 21-8
- 5-3+ 20-3+ 6-4
- 21-5— 2O-O
— I9'6
— 29-0
- 24-8
- 6-8+ 3-8+ 3-8
- 34- 3-8- 0-4
+ 0-7+ 2-2— 28-4- H'S— 15-0-27-4
" S1— 1 1-6— 30-8- 30-2+ i-S+ 3-0
+ 1-8
Estimated.
+ 24-9+ 24-9+ 55-6+ 37-5+ 457+ ЗЗ'О-29-5-48-5
+ 317- 6-4+ 31-7+ 6-4
- 1 6-6- 1 6-6- 17-4— 30-2— 25-6- 10-3
o-oo-o
- 0-4- 0-4- 29-3- 14-5- 15-0-27-8- 8-2— I2'I
- 29-9- 29-9
o-o+ 3-0
O'O
REMARKS.
No want of coincidence between the twospectra could be detected.
Position Circle, 6°.
Spectrum faint and tremulous. Definitionpoor. Star-lines seen with difficulty.
Spectrum bright but tremulous. Definitionpoor. Star-lines seen with difficulty.
Spectrum fairly steady ; bi could not bedistinctly seen, but 64 was very distinct.
Spectrum faint but fairly steady. Star-linefaint but seen fairly well now and then.
The coincidence of the two spectra ap-peared perfect.
Spectrum faint. The line in the spectrumof the planet was faint, but fairly welldefined. Calculated motion + 2-0 milesper second.
Position Circle, 6°.
Spectrum tremulous. Star-line very faint.
Star-line seen fairly well at intervals.Mist rendered measurement difficult.
The line in the spectrum of the planetwas faint. Calculated motion + 3-3miles per second.
Position Circle, 1 86°.
The coincidence of the two spectra appearedperfect.
Position Circle, 1 86°.
Spectrum tremulous.
Star-line diffused and ill-defined.
Spectrum tremulous. Star-line faint.
Calculated motion + 5-6 miles per second.
Position Circle, 6°.
Spectrum tremulous. The line in thespectrum of the planet faint and in-distinct. Measure rough. Calculatedmotion + 7-3 miles per second.
Position Circle, 6°.
QBEBNWICH OBSERVATIONS, 1880. 5 В
10 MOTIONS OF STABS иг тнв LINB OP SIGHT, INFERRED FROM SPEOTROSOOPIO OBSERVATIONS
Date, 1886.
Greenwich
Civil Time.
d h mApr. 30. 2i. 30
21.38
22. 5
22. 13
22. 4.O* т22.45
23. 2O
23.25
23. 4523-50
Мяу ï. 2i. о21. IO
21. 25
21.35
21. 50
22. 0
22.35
22-45
23* 5
23.1523.3023.40
23.50
23.552. 0. 15
0.25
May 3. lo. IDIQ. 15IO. 2O
to. 2510.30
May 3. 23. 4023.50
4. o. oo. 50. 10
o. 15o. 30o. 40I. O
I. IO
I. 20
1.30
1*45»•552* 52.152. 20
2.25
O
NNNNNNNNJJ-N
MM
MMMMHMMMMMMHuM
MMMuH
MMMHMHMHMH
MM
uMMHMM
Object.
Regulus
Mars,
B Leonis
Spica —
Arcturus
Procyon
PolluxJ J
Castor
ß Ursas MajorisJ ,
a Ursas Majoris, ,
y Urais Majoris5 J
eUrese Majoris
( Ursas Majorisf j
Sky
,,1 1, ,
Regulus, J
Mars
9 >
ß Leonis
y Virginie
o Virginie
Arcturus, ,
o Coronae Bor.t », ,, ,
Line.
FFFFFFFFFF
FF
FFFFFFFFFFFFFF
FFFFF
FFFFFFFFFF
FF
FFFFFF
Widthof
Slit.
O'I7Cw * / 30-175
0*175
0-175O'I7Cw * / 30-175O"I7Cw * / j0-175O'I7C*"- */ 50*175
о'обс0-065
o"oÓ50-0650*06 с0*0650-0650-0650-1400-1400-1400-1400-1400-1400-1400-140
O'I4.O
0-140
0-140
0-140
0*140
о* н сU 1JJ
0*135о'МСw * 330-1350-1350-1350-1350-135О" ШСu • 330-135
0-1350-1350-1350-1350-1350-1350*1350-135
Displacement.
Measured.
+ 0*00 1— 0*001
+0-017+0-017— 0*067—0-044— O'OZO
—0-051— 0-041—0-066
+ O'OI2
—0-284
— 0*078V W f U
— 0*112
+ O"I l6
+0*154+ O-II2
+ 0-009
— 0-II2
— O*2O4
— 0*015
+ O'IOO
+ 0*046
— 0*017
+ 0-075
+ 0-023
— 0-021
+ 0-036
+ O-OOI
+ O-OO5
+ O'IOO
+0*027— O'OZI
— 0*056+0*009—0*027+ 0*025—0*003— O'HOЧ/ 1 JW
—0*089
—0-196— o-ioi
—0*221— O*2I2
— 0-065
— 0-141
+ 0*010
-0-145
Estimated.
о0
+ A+ А- í-í- A30
_ ..
+ Aт^ То
— ^— 1+ 4
+ |
+ 10
— i
- í-A+ i+ 1+ 4.+ rV
+ A2+ A- ATo- i
O
- rV+ A
o_ 11a
I f
- t"~~ *í
— ío
— 1
Earth'sMotion inMiles perSecond.
+ I7'2-Г l j л
+ I Ч "б
+ 13-6+ f."!' 3 /+ 57+ 4-8
+ 16-6+ 16-6
+ l6"QT IU у
+ i6*9+ 16*4.т »« ч-+ 16-4+ 12-7
+ 12-7+ 117+ 117+ 117+ 117+ 9'5+ 9-5+ 8-4+ 8*4
+ I7-C— * ï 3
+ 14-2
+ io'3+ 10*3
+ 6*6+ 6-6
+ 5'5+ 5'5+ 0-7+ 0-7+ 07+ 0-7
Concluded Motionof Stare in Miles per
Second.
Measured.
— l6"Q?- i7'5+ S'i+ 5'i— 34'°— 27-0— I I -8— 21*2
— 17*2
— 24*8
— I3'O— 102*8
— 40*6
- 5°'9+ 18-0*-f- iu .y
+ 30-4+ 21*3— IO*O
-457-737-16*3+ 18*7+ 4'5— 14*6+ I4'4- !'4
— q-i- 6-4+ 10-9+ 0-3+ »'S
+ iz'9- 9'3- 6-4T- 17*0+ 27- 8-2- 6-6- 15-1— 4.Q-8T" u
- 37'3
-66*1-55'S
-72-6- 69'9— 20-4-43;5
-447
Estimated.
— 17*2- 17-2
+ 4'o- ЗЗ'б
— Q'77 /
-217
- 18-1— 24-8
— O'C7 3
— 4.C-I
-45-1
+ 18-9+ 10-8- 127-41-0
- IÍ-Í+ 17-6+ 8-0- i3'9
+ 0*4
+ IQ'4.T^ * 7 T
— 10*1— 7*4./ т- 147
0*0— 7*4- 6-8- I4'2
— 4.7*2T/ *
- 34'9
-55-8- 5°'9
-64-6-64-6— 19-2-37*6- 0*7-37-6
REMARKS.
Calculated motion + 7-8 miles per second.
Position Circle, 6°.
Spectrum faint and very tremulous. Bi-section difficult and uncertain.
Spectrum and star-line faint. Measuresmade with great difficulty.
Spectrum faint but definition good.
Spectrum faint. Measures made with greatdifficulty.
Spectrum fairly bright, but star-line veryfaint and difficult to see.
Star-line very ill-defined.
Star-line very ill-defined.
Spectrum bright and definition fair, butstar-line broad and diffused.
Position Circle, 6°.
The coincidence of the two spectraappeared perfect.
Position Circle, 6°.
Spectrum bright but tremulous. Star-linediffused but seen fairly well.
Spectrum bright and steady, definition fair.Calculated motion + 8*0 miles persecond.
Spectrum fairly bright and steady. Star-line very diffused but seen fairly well.
Spectrum fairly bright and steady. Star-line broad and diffused but seen fairlywell.
Spectrum bright but very tremulous. Alarge displacement towards the blue wasmanifest.
Spectrum bright. Definition good.
Star-line very difficult to bisect.
Position Circle, 6°.
AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YBAR 1886. 11
Date, 1886.Greenwich
Civil Time.
d h mMay 6. 22. 39
22.44*3-5°23.59
May 13. 2i. 3021.4522. 10
22. 30
22. 50
2 2 . 5 5
23. о*3- 523. io23. 3023.50
14. o. 5o. 150.25o. 30
0.45
May 15. 2i. 2021. 30
21. 4. Ç* * • ТЭ22. О
.
22. 15
22.2523. je23.40»3-4523.502 3 - 5 5
May 18.22.3522. 4022. 58
23. 32 3 . 2 5
23.30
2? CO* J- 3W
23-5323.56
23-59
May 20.22. 1522. 25
•22.45
22. 50
23. *5
23. 28
О
NNNN
MMMMMMMMMMM
MHMM
M
MMMM
MMMMM11il
NNNNNNNNNN
NNNNNN
Objeot
> >
Arcturus) )
Arcturus» »
о Canum Ven. .; >
Moonj »
» >
> )
9 ,
ß Libne» >
a Corones Bor.> 9
ß Serpentis ...» >
y Herculis
» 9
) 1
ß Leonis! >
» »
> 1
> >
9 >
Regulus) »
Spica? »
Arcturusï >
> »> ï> >
AroturuB1 1
a СОГОПЮ БОГ.
t t
) >
Line.
FFFF
FFFFFFFFF
•FF
FFFF
F
FFFF
FFFFFFF
FFFFFFFFFF
FFFFFF
Widthof
Slit.
044. СW A lf.3
0-145
0-145
0-145
0-153
D 'ISS
0-153
0-153
O'l C7w * .) J0-1530-1530-1530-153О' I С ï" * 5 30-153
0-1530-1530-1530-153
0-153
о'юзD-ЮЗочозо-юз
очозочозО'ЮЗw t w j
ОЧОЗ
ОЧОЗ
ОЧОЗ
О-ЮЗ
0-1800-1800-1800-180o- 1 8o0-180o* 1 8o0-1800-1800-180
0-2300-2300-230o-23'oO'21Ow *JW
0-230
Dieplaoement.
Measured.
+ 0-052— 0-030— 0-060-0-055
— 0-086-0-093— 0-072—0-084— O'O27W \J* f
+ O-O22
+ 0-001
+ 0-OI7
— o-oio-ОЧ2О
— 0-032
+ o-o'6i+0-042—0-027—0-058
—0-125
+ 0-024+ 0-060— 0*11 ç«o—0-064
—0-013+ O-O2I— 0*003
o-ooo— o-ooi—0-009—0-006
+0-045+0-053+ 0-004+0-017—0-114—0*058— 0*006
— 0*021+0-005+0-003
—0-069-0-044—0-040-0-039— 0*028—0*023
Estimated.
+ £_ i
- ií
- è- A- i
_ AЛ+ i+ *-t- * .
+ -^+ è_ a
- *
~™ Т(Г+ A
+ *+ i
o+ A— -í-
- 1
- i- 1- iV- Л
Earth'sMotion InMiles perSecond.
+ I7'6+ I7'6+ 6*2
+ 6*2
+ 7'8+ 7'8+ 11*9+ "'9
+ I -7ï д /+ i*7
+ 2*8
+ 2*8
+ 1-3+ 1-3
— П
+ 17*9+ 17-9+ 16-8+ 16-8
+ 15-9+ 15-9
+ 17-9+ 17-9+ 10-5+ 10-5+ 8-9+ 8-9
+ 9'3+ 9'3+ 4'*+ 4'*
Concluded Motionof Stars in Miles per
Second.
Measured.
— 1*8-26-7- 24*4- 22-9
-33'9-Збч-33-8- 374— 8-2+ 6-7+ 0-3+ S1'- 3'o— 38-1- 11-4
+ 157+ 9'9- 9'5— 1 8-9
- 36-9
— IO"6
+ 0*3— 51*7-36-2
- -<9'9- 9'5— 0*0w ^
0*0- 0-3- 2-7- 1-8
- 4-2- 1-8- 9'3- 54-43'S-26*5— 1-8- 6-4
+ «'S+ 0*9
- 30-3- 22*7
-I6-3
— l6'O
— 8'Cu j- 7-0
Estimated.
+ 2-1— 28-9-25*9- 21-9
-41*0
- 377- 36-8-36-8
— Ч4.'<53* 1— iro
+ 22*1
+ i7'i— 11*2
— 21*2
-38-8
- 9'6
+ 2'9
— со* ïЭ *- 50-1
— 20-0
- 7-6
- 41*- i'5- 10-5- *'3-41-7- *5'3
- 30-9- H7- 15*0- 15*0
REMARKS.
Measures made with difficulty.
Position Circle, 6°.
Spectrum bright and fairly steady, butdefinition poor.
Spectrum bright and fairly steady, butdefinition poor.
The coincidence of the two spectraappeared perfect. The observationswere interrupted by passing cloud.
Spectrum bright but tremulous. Theobservations were interrupted by passingcloud.
Spectrum bright and fairly steady. Defini-tion fair.
Spectrum steady and fairly bright. Star-line very well seen. Measures consideredgood.
Spectrum faint. The observations wereinterrupted by cloud.
Position Circle, 6°.
Spectrum faint and tremulous. Star-linefaint and very ill defned.
Spectrum fairly bright but tremulous.Definition f air. Displacement evidentlylarge and towards the blue. Star-linedark, very broad and diffused at theedges.
Spectrum fairly bright but tremulous.Definition fair. Displacement very small.
The coincidence of the two spectraappeared perfect.
Position Circle, 6°.
Star-line diffused and faint.
Definition poor. Measures rough.
The coincidence of the two spectraappeared fairly exact.
Position Circle, 6°.
Star-line very indistinct.
Star-line very broad and dark.
The coincidence of the two spectraappeared perfect.
B B S
12 MOTIONS OF STABS ш THE LINE OF SIGHT, INFEBBED FBOM SPECTBOSCOPIC OBSEBVATIONS
Date, 1886.GreenwichCivil Time.
i h mMay 20. 23. 30
23-33
June 7. 22. 522. 20
June 8. го. 2010.21
io. 23io. 24io. 25
June 15. 23. о23. 522, AJQ*Э* Tv
23.4223-4323-45
16. o. 15o. 20o. 38o. 50
June 28. 23. о23. Ч23, 3023-45
29. о. оo. 20
o. 40o. 50ï. 5ï. 201-35i-5°
June 29. 12. о12. 2
12. 4
12. 6
12. 8
July J. 22. 3022. SO
23.1523.30
23-45
23.586. o. 1 5
о
N
N
MTA
КMMMM
NNNNNNNNNN
MHMMMIf
MMMMHM
MMMMM
MMHMHMM
Object.
Moon» »
Arcturus> >
Sky» »> »> >> »
Arcturus» »
Moon» >5 J
> )
y Ursse Majoris> >
a Ursae Majoris> »
Arcturue» >
e1 Boötis» >
a Serpentis ...> »
7 Draconis ...> >
•v C verni» >
a Cygni> »
Sky) »t »i ?> *
Arctums» »
o Coronœ Bor.> >
a Ophiuchi ...> »
Line
PF
6,ь,
i.*!
»i».»i
&i&iuj.Й1
»i61
b,61»I
ilUlbji.Й1
ft.
»,»iЙ1&i
b,6.
b.b.й-&,b.
FFFFFFF
Widthof
Slit.
rO'24OW AJW
0-230
ОЧб5
ОЧб5
0-165
0-165
0-l65
0-l65
0-l65
0-I5O
o- 1 50o* ï со" * Jw
0-1500-1500-1500-1500-1500-1500-150
0-1240-124O' 12a.ж T0-IZ4
O-I24
0-I24
0-I24
O-I24
ОЧ24
ОЧ24
O-I24
0-I24
0-I24
ОЧ24
0-I24
0-I24
0-I24
0-I50
O'ISO
O-I5O
0-I50
0-I50
d-I50
O-I5O
Displacement.
Measured.
r— O'OOQ7— o-ooi
-0-099— 0-096
+ 0-030+0-030—0-013+ 0-019— o-oii
-0-138-0-095— O'OIJ.
^ W1T
—0-014—0-023—0-006+ 0-006+0-037— 0-I2I
—0-138
— 0-049-0-074— 0*036+0-024+0-033+ 0-008
+0-072+0-044+ 0-009+ 0-007— 0-046+ 0-009
—0-013+ O-OIO+ 0-024+ 0-005— o-oi8
— 0-132— o-oii+0-124+ O - I I I— 0-023— 0-069— 0-08 1
Estimated.
- л- i
_ i— £
o+ *— i
- £- i- XTo
+ T+ ï+ A
+ *+ i+ A
o~~ T+ A
Í- A+ Л+ 1
-t~ A
Earth'sMotion inMiles perSecond.
+ 12*5+ Ï2 -5
+ i3'5+ I3-5
+ 10-9+ 10-9+ 8-7+ 8-7
+ 47+ 474- 1 i*7T 1 A /+ 12-7+ 11-7+ 11-7
+ 0-9+ 0-9- 6-9- 6-9- 74- 74
+ iS'i+ iS'i+ 11-4+ 11-4+ 57+ 57
O'O
Concluded Motionof Stars in Miles per
Second.
Measured.
2*7л 1
- о'З
-497-48-5
+ n-3+ ITS- 4'9+ 7-1- 4'1
-65-3— 49-2
5'3- 5'3- 8-6— 2'2- 8-7+ 3-0- 54'-— 60-5
- 33'i— 42-5-26-2- 37+ 0-7- 8-7
+ 26-1+ 15-6+ 10-3+ 9'5- 9'9+ 10-8
- 4'9- з;8+ 9-0+ 1-9- 6-8
- 55-2— i8'4+ 26-3+ 22-3- 12-7— 26-7— 24-6
Estimated.
— 50-0-43-8
-62-3— 46-0
— 10-9
+ 54- 57'5- 57'5
— 36-0- 4!'3— 21*7
*J D
+ 2-5+ 3'5- 6-4
+ 41-6+ 25-7+ I7-5+ 6-9- i3'9+ 127
-54-8— 23-0+ 28-3+ 20-3-I3-6- 25-5-23-8
EEMABKS.
Position Circle, 6°.
Spectrum faint but fairly steady. Star-linesfaint and seen with difficulty.
Position Circle, 6°.
The coincidence of the two spectraappeared perfect.
Position Circle, 6°.
The coincidence of the two spectraappeared perfect.
Spectrum faint. Star-line fairly well seenat times.
Position Circle, 6°.
Spectrum very tremulous. Definition poor.
Spectrum fairly steady, but definition bad.Star-lines seen with great difficulty.
The spectrum of this star is of the secondtype, and not of the third, as given bySecchi. Spectrum faint. Definitionpoor. Star-lines seen with great diffi-culty.
Spectrum very tremulous. Definition bad.Star-lines seen with great difficulty.
Spectrum very tremulous. Definitionvery bad.
Spectrum very tremulous. Definition bad.Star-lines seen with great difficulty.
Position Circle, 6°.
The coincidence of the two spectraappeared perfect.
Position Circle, 6°,
Spectrum very tremulous, but star-linefairly well seen at times.
Spectrum fairly steady. Definition fair.
Spectrum steady. Definition fair.
Spectrum bright and steady. Definitionfair.
лт THE ROYAL OBSEBVATOBY. GBEENWICH, IN THE YEAB 1886. ia
Date, 1886.GreenwichCivil Time.
d li niJuly 6. o. 30
O. AC• TJI. О
I. 20
I. 40
July 6. 13. 1513. 1713. 2013. 22
I 3 - 2 5
Aug. IO. 22. 30
22.3523. о23. 2
23. 523. 823. ID23.5323.58
II. I. 251.30
Oct. 13. 19. 40» 9 - 5 5
Oct. 1 8. 21.20
21. 40
22. 0
22. IO
Oct. 22. 1C. 25
19.40
20. J
Nov. 5 . 2 2 . 3 522.5523. ID23. 1523. 2023. 22
23.25
23-456. o. 5
o. 30
Obs
erve
r.
I
M
MIfMM
жMMMM
NNNNNNNNNNN
MM
MMMM
MHM
MMMMMMMMMH
Object.
a LyrSB
a AquilfS» »
a Cygni1 1
Sky» »» »» >» »
a LyrS9> >
Moon» »> >i >> »
a Áquilee> >
a Pegasi» »
» )
a Aquilffi> »
a Cygni> ï
a Lyrto> >
a Aquilffi
a Androinedte> >
Moon) )> >1 1i »
Rigel1 1
Line.
F
FFFF
FFFFF
FFFFFFFFFFF
FF
FFFF
FFF
FFFFFFFFFF
Widthof
Slit.
0-150
O'l COW 1 }W
0-150O'l COW 1 JW
0-150
0-1500-1500-1500-1500-150
O'l Id.W 1 1 Ц.
0-1140-1140-1140-114o'i 140-1140-114o'i 140-1140-114
0-1050-105
0-10504050-1050-105
0-1030-1030-103
0-1480*14804480*1480-1480-14804480-1480-1480-148
Displacement.
Measured.
г— 0-O04
— O'O7Qv / 7— 0-I05
— O"o6l
— 0-129
+ 0-007— O'OOO
+ 0-031+ 0-005— o-oo8
— 0*080— 0^084— O-OI2
— O'OII
—0-007—0-007+ 0-005— 0-052— 0-I2I
— O-O28
— o-oii
— O-2IO
-0-133
— 0467
— ОЧ72
— O-22I
-0-095
— 0-212
— 0-118-0-088
+ 0-035
+ O-OO9
4-О'ОЗЛ_~u UJT+ 0*046+ 0-013+ 0-012
— 0'014
+ 0*169
+ 0*161+ 0-054
Estimated.
0
— a
— 1
_ I|Я
- f- i"" Ttr
o
_ f
— ^
- í- í- í- 1
— jj— 1
+ i+ w
+ í+ *+ *
Earth'sMotion inMiles perSecond.
0*0
— A.' tT 3- 4'3— 6-8- 6-8
+ A-8Т 1-0
+ 4'8
+ 4'9+ 4'9- 9'3- 9'3
+ 8-7+ 8-7
+ 16-1+ 16-1+ 7'3+ 7-3
+ 8-s+ 8*s+ l6'2
+ 8-6+ 8-6
- 8*4- 8-4- 12-3
Concluded Motionof Stars in Miles per
Second.
Measured.
— Г2
— 10*7•y /-27*6
— I 1*71 Ã /- 324
+ 2*1- i.*8+ 94+ i'S- 2*4
— 20*1*7 ï
- 30-3- 3-6- З'З— 2*1
— 2*1
+ i'5-20*7
-41*6+ o*8+ 6*0
-72*5-49*i
-66*8- 68*4-744-Збч
-72'9-44'3-42*9
+ 2-0
- 5'9+ 1 0*3'+ H'o'+ 4'°+ 3-6- 4*3+ 597+ 57'3+ 28*7
Estimated.
o-o
— I C'CЭ ">
- *74— I3'o-32*9
— 1I"4У J
- 3J '3
— 20-8
-447+ »Ч+ 9'3
-56*5— 40-6
- 544- 544-58-3-32-8
- 53-2- 3-S'S-38-5
(+ 9-0(- 4-1)
(+ 61-6)(+ 6 r6)(+ 3°'°)
REMARKS.
Position of star very awkward for observ-ing ; measures rough in consequence.
Spectrum tremulous, but definition fair.Star-line faint.
Spectrum bright and steady. Definitionfair. Position of star very awkward forobserving ; measures rough in conse-quence.
Position Circle, 6°.
The coincidence of the two spectraappeared perfect.
/
Position Circle, 6°.
Spectrum very bright and steady. Star-line distinct.
The coincidence of the two spectraappeared perfect.
Star-line broad and diffused.
Spectrum faint.
Position Circle, 6°,
Clouds constantly passing. Observationsmuch interrupted, but star-line seenfairly well at time of bisection.
Position Circle 6°.
Spectrum very faint and tremulous.
Spectrum faint but steady. Star-linefairly well seen.
Position Circle, 6°.
Spectrum bright and fairly steady.
Spectrum bright and fairly steady.Position Circle, 6°.
The lines in the spectrum of the Moonseemed to be displaced towards the red.
14 MOTIONS OF STARS IN THE LINE OF SIGHT, INFERRED PROM SPEOTROSOOPIO OBSERVATIONS
Date, 1886.Greenwich
Civil Time.
d b mNov. 6. о. 4о
о, joI. 0
Nov. 17.23. 1523.2523.4023.50
1 8. о. 50.150.25
о. зо0.35о. 4оо. joI. 0
I. IO
1.15I. 20. 25
•30
• 35• 4°• 45• 5°• 55
2. 52. IO
2. 2O
2. 3O2. 40 ,
2.45.2.50
2 - 5 53< о
.
Nov. 29. 19. 3019.3619.3919.4419.48
• '9- 5320. 30
. 20. 5021. 2O
21.40
22. О
22. 15
Nov. 30. ii. 3011.3411.37
II .4I11.45
g
О
MHM
MuMMMMHMMHMMMMMMMMMMMM
MMMHMMMMM
MHMMMMMMMMMM
MMMMH
Object.
Sirius» »
Aldebaran ..., ,,,, ,
*p'»pl
_y Orionis
, ,,,,
ß Tauri, ,
Sirius5 >
, ,
» >
J »
, ,
Procyon
, ,•> »
Castor
Pollux'
Moon» ?,,
• » >, ,
ß Pereei,,,,, ,, ,, ,
o Persei
Aldebaran
Capella
Sky, ,, ,, ,> ,
Line.
FFF
FFFFFFFFFFFFFFFFFFFFFF
FFFFFFFFF
FFFFFFFFFFFF
FFFFF
Widthof
Slit.
0*1480*1480*148
0*1190*1190*1190*119о" ï ig0-1190-1190*1190-1190-1190-1190-119O* I IO" * 7O'I ig
O'I ig
O-I I9
0-II9
O'Iig
o* 1 190-1190-1190-119
ОТ IQ
0*U9
O*I IO0*119О* I IQO'IigO'IigO'IigО* I IQ
0*173
0*1730*173
0*1730*1730*173
0*173О* 1 7t, "• / J0-173
0-173
0-1730*173
O*I730*173
Displacement.
Measured.
+ 0*050+ 0*073+ 0*069
+ 0*132+ 0*132+ 0*154+ O * I I I
+ 0*019+ 0*010+0*118—0*068+ 0*009—0*002-0*073— 0*032— 0*032+ 0*002+ 0*016+ 0*010— 0-008—0*032
O*n22
—0*062+0*034— 0*018
1
+0-075— 0*086— 0*118— 0*001
0*000— O'OOI—0*001+ 0*010
+0*095+0*094—0*039—0*017—0-015-0-043— O'OÎIw w^ 1+ 0*089+ 0*042
+ 0*08 1+ 0*006
+ 0*073
+ 0*015— 0*029— 0*000+ 0*028—0*011
Estimated.
i i
+ i+ i
+ %+ Z+ 1+ 2
• i
+ ТПГ
+ í— Jjf
oí
-"~ TV- 1v
o+ ITT+ aïr
0- i
17Г
+ i- Л
• i+ -ГZ È
.
+ %+ í— -jlg.
TO"- A~* т- -ATO
i j
+ Ii 3
+ 1
Earth'sMotion inMilee perSecond.
— I 2*3- 12*3- 12*3
- 4'1
— 4*1— 4*1- 4*1— C'A.5 T
- 5'4- 7-2- 7-2- 7*2- 7*2- 8*0— 8*0— IO*6— 10*6— 1 0*6— 10*6— IO*6— IO*6— I C'A' Э т- 154- 154- 154
t _
— 47
- ÎS'S
,
+ 3'9+ 3*9+ 3'9+ 3'9+ 3'9+ 3'9+ 2"O+ 2*0
— O'Ä
— 0'2— -,o
- 3-8
•
Concluded Motionof Stars in Milee per
Second.
Measured.
(~Ь 27*5)(+ 34'5J(+ 33-3)
+ 44*2+ 44*2+ 50-9+ 37-8-L 1 1 '2
+ 8*4+ 43 'о- 13'S+ 9'9+ 6*6- 14-2
+ O'Q+ II-2
+ 15-5+ 13-6+ 8*2
+ 0*9• -, -
- 34+ 25*7+ 9'9
+ 18*0+ 37'5— 10*6— 20*3^ O'Qо y
0*0- 0*3- 0*3+ 3'o
+ 24*9+ 24*7- 15*7— 9*0- 8*5+ 9*2— I l'A,д 'T
+ 25*0
•4- I2'Oт « * y+ 24-84- Î2'O~ У 7
+ 26-0
- 4-6- 8-8- 1-8+ 8-5- 3'3
Estimated.
(+ 30*0)
(+ 34'5)(+ 34'5)
+ 41*2+ 41*2+ 45-8+ 31 '9+ I I'O+ 8*2
+ 40*6- u-3+ 10*0
+ 7'2-18*5+ 2*4— 0*5+ 10*6+ l6*2
+ 134+ 10*6— 0*5+ 6*1
+ 20*5
+ 9'8
-I- ï 7'Cï * I У
+ Î6'9— 12*2lí 3- 12*3
+ JS'3+ ÏS'3- 8*7- 8*7- 6*3+ 57- 6*8+ 22*0+ 12*2
4- Í2*6~ J*- v•f 27*8
REMARKS.
JVbfe. — On examining the spectroscope onthe following morning, it was found tobe out of adjustment. The observationshave therefore not been used.
Position Circle, 6°.
Spectrum steady, but star-line rather faint.
Spectrum tremulous, but star-line distinctand well defined.
Spectrum fairly bright and steady. Thestar-line appeared to be broader andmore diffused than usual.
Spectrum steady. Star-line well seen.
Spectrum very bright but tremulous.Star-line well seen. Direct comparison
showed that the two spectra were almostin exact coincidence, the displacement,if any, being towards the red.
Spectrum steady. Star-line well seen.Direct comparison showed that the twospectra were almost in exact coinci-dence, but with a very slight displace-ment towards the blue.
Spectrum steady and fairly bright. Star-line diffused, but seen well.
Spectrum steady. Star-line very faint,but seen fairly well at times.
The coincidence of the two spectra ap-peared perfect. Moon spectrum verywell defined.
Position Circle, 6°.
Spectrum bright and steady. Star-linevery broad and diffused, but seen well.The displacement was evidently verysmall.
Spectrum steady, but star-line very diffi-cult to observe. Same type as Procyon.
Spectrum tremulous. Definition poor.Observations made with much difficulty.
Definition poor. Star-line seen with muchdifficulty. Observations rough.
Position Circle, 6°. •
No want of coincidence between the twospectra was detected.
Position Circle, 6°.
AT THE ROYAL OBSHBVATORY, GBBBNWIOH, IN тнв YHAK 1886.
Date, 1886.GreenwichCivil Time.
(1 h luDec. 4. 20. 40
20. SO
21. 521. 1521. 2 С* t * * э21. 2921.-32
21. 3621. 40
22. 5
22. 15
22. 25
гг. 3522. JO
23. 023. 1523.25
Dec. 14. 19. 55!9-5720. О
20. 420. 17
го. iç2O. 242O. 2020. 2820.33
1О
MMMMMMMMMMMM11HMMM
MMMMLLLЬЬH
Object.
ß Arietis1 1> >9 >
îdoon» >1 1» >9 >
/S Persei» >» *» >
a Persei> >
Aldebaran> >
|S Peraei»>*>>>ï>»
Line
FFFFFFFFFFFFFFFFF
FFFFFFFFFF
Widthof.
Slit.
O-2OÓ0-206O'ZOO
О'2ОбО'2Об0-200О'2Об0-20Ó0%2обO-ZOÓ
O'ZOO0-20бО1 2 об
0-206О'2Об0'2Об
0'20б
0-200О'2ОО0-200О-20О0-200О-2ООО-2ООО-2ООО-2ОО0-200
Displaoement.
Measured.
+ 0-130+ 0-059+ 0-042+ 0-092+ O'OI7— 0-041+ 0-02/
+ 0-024— О-О12
-0-358— 0-362
-0-395— 0-286
+ Q-OOI— 0-046
+ O"I l6
+0-167
+0-146+ 0*005+ 0412
— 0-029+ 0-005+ 0-008+0-030—0-030+0-067+ 0-103
Estimated
U+ *
— ti— ij— 1\— i
о
- l*+ 4п^ 2+ í
+ èо
+ è- Л+ iV+ í+ 1
0
+ 1+ 1
Earth'sMotion inMiles per
+ 12-1+ 124+ I2-I+ 12-1
+ 54+ 54+ 54+ 54+ 3'5+ 3'5+ r;• * j+ 1-5
+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3
Concluded Motionof Stars in Miles per
Second.
Measured.
+ »74+ 5-8+ 0-6+ i5'9+ 44~ j *- 12-4+ 8-2+ 7-.1- 3-6
— /14-1-115-3-125-4- 9^3- 3'z- 17-5+ 33'8+ 49-2
+ 36-0- 6-8+ 25-7- 17-1- 6-8- 5'9+ 0-8- 17-4+ 12-1+ 23-0
Estimated
+ 28-3+ 8-1- 4-0+ Ч'8
— io6'4— 106-4-126-6- 86-2- 3'5- 1 1-6+ 38'9+ 47'°
+ 29'5- 8-3+ 29'5— I2-I
- 0-7+ *9'5+ *9'5- 8-3+ 10-6
+ 29'5
REMARKS.
Spectrum rather faint but steady. Defini-tion good.
Spectrum bright and steady. Definitionfair. The coincidence of the twospectra appeared perfect.
Spectrum rather faint but steady. Star-line not seen very well, but unmistake-ably greatly displaced towards the blue.
Spectrum steady. Definition good. Dis-placement evidently very small.
Spectrum bright and steady, but star-line not seen well.
Position Circle, 6°.
Spectrum fairly bright and steady. Defini-tion fair.
Position Circle, 6°.
16 MOTIONS OP STAKS ш THE LINE OF SIGHT, INPEEBBD PROM SPBCTEOSCOPIC OBSERVATIONS
ROTATION of JUPITEE deduced from the Relative Displacement of Lines in the Spectrum at the Preceding and Following Limbsrespectively.
Date, 1886.
Greenwich
Civü Time.
p Limb. / Limb. Line.
Width
of
Slit.
Displacement
Measured.
P-f
ConcludedMotion inMiles perSecond,
P-f
Position
Circle.REMABKB.
d. h. m.May 15. 22. 40
22. 50
23. о23-152 3 - 2 5
MMMHM
r.i-oio1-0521-0761-0241-099
Г.
0-9330-8980-9940-9620-942
FFFFF
r.0-1030-1030-1030-103O-IO3
0-0770-1540-0820-0020-157
Mean..
+ 234
+ 46'8
+ 24-9+ i8-8+ 477
32
32
32
32
+ 32-3
Cylindrical lens before slit. Slit tangential tolimb. The limb of the planet was brought upas carefully as possible to the outer edge ofthe slit, which was about i"-o in width. Themean point observed was therefore about o"'5from the limb. Spectrum faint, and measuresvery difficult though the definition was fair.
Calculated Relative Motion of the limbs (p—f) + 32 miles per second.
AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR ШС>. 17
EXPERIMENTAL OBSERVATIONS of DISPLACEMENT of LINES in the SPECTRA of STARS, us compared with those ofTERRESTRIAL ELEMENTS, mado with the REVERSION APPARATUS of the OXFORD REVERSION SPECTROSCOPE, at theROYAL OBSERVATORY, GREENWICH, in the Year 1886.
The following observations were made with the reversion apparatus and viewing telescopo of the Reversion Spectroscopebelonging to the University Observatory, Oxford, which had been lent by the Rev. Prof. Pritchard for the purpose of experiment.The slit, collimator, and prisms of the Greenwich Half -prism Spectroscope were used, the Oxford Reversion Spectroscope notbeing well adapted in its complete state for use with the S. li. Equatoreal, but the viewing telescope of the Half -prismSpectroscope was taken off, and the reversion prisms and viewing telescope of the Oxford Spectroscope substituted for it. As theaperture of the telescope of the Oxford instrument was very much smaller than that of the Half-prism Spectroscope, a considerableportion of the light was lost in this rough combination. It was not found possible to attach the two instruments very rigidly toeach other without making serious alterations in one or the other. The observations were therefore made under greatdisadvantages, and direct micrometric measures were found to be out of the question. The following estimations were howevermade successfully. One half-prism was used throughout.
Date, i88G.
Greenwich
Civil Timo.
h mFeb. z6. zo. 5
ZO. 10
zo. 1520. 20zo. 2522. 30
20.35
20. 40
20. 4520. 5020.5521. О
21. 5
21. 1521. ZO
21.25
21. 30
2 1 - 3 5
21.45
21. 50
2 1 . 5 5
22. 0
22. 5
н-
EsaО
MMMMMMMMMMMMM
MMMMM
MMMMM
Object.
Sirius
Procy on1 ,
ï >
> 1, 1
Castor1 1» ii >» >
Lino.
FFFFFFFFFFFFF
FFFFF
FFFFF
Width
oC
Slit.
04350-1350-1350-1350-1350-1350-1350-1350-1350-1350-1350-1350-135
O" H çw ж j j0-1350-1350-1350-135
0-1350-1350-1350-1350-135
Estimated
Displace-
ment.
- -tT
— ^— I— i— ; •
— ;•_ . .— - j_
- i— i- i
о- А
ï А о~~ 100
0
+ тЬ
+ тЖг+ iV+ 1+ 1
-
Earth'sMotionin Miles
perSecond.
+ I ГО+ 11-9+ 4'9+ H'9+ H'9+ H'9+ 11-9+ H'9+ 11-9+ H'9+ H'9+ H'9+ 1Г9
Mean
+ I Z ' C-[-1*5
+ "'S+ 12-5
+ 12-5+ 12-5Moan
+ H'i+ 144+ H'1
+ H' i+ H'1
Mean
jonoludedMotion of
Starin Miles
>er Second.
— 24'!
- 76-9- 44'4— 60-7- 24-1-72-8— 72-8-7Z-8-85-1— 60-7- 24-1— 60-7- 24-1
- 57-2
— i z ' c1 * >- 174- 13-0- 13-0- 12-5
- 137
-13-6-I3-6- 9'2+ z-i+ 2-1
- 6-4
REMARKS.
Spectrum very tremulous, and definition poor. Neither themicrometer screw moving the prisms of the Half-prismspectroscope, nor that moving the prisms of the reversionapparatus moved with sufficient steadiness for any trust-worthy measures to be obtained by their means. It wasonly possible therefore to make estimations. These weremade by bringing the two images of the dark F line inthe star spectrum into coincidence, and then immediatelyflashing in the bright hydrogen line, and estimating thedistance between the centres of the two images of thebright hydrogen line in terms of its breadth. In the firstnine observations the micrometer screw moving theprisms of the Half-prism spectroscope was turned inorder to bring the lines into coincidence ; in the last four,the micrometer screw of the reversion apparatus ; thelatter proved much the more sensitive and satisfactory ;indeed when the finger was lifted from the first-men-tioned micrometer the spectra would often shift whileactually under observation. Notwithstanding the com-parative faintness of the spectrum, its tremulousness andpoor definition, it was found fairly easy to bring the twospectra into coincidence, but it was not so easy as hadbeen anticipated.
Spectrum faint. Definition poor. The observations of thisstar were however much more satisfactory than those ofSirius, and repeated observations showed that the dis-placement was practically nil. The precision with whichthe two images of the line could be brought into coinci-dence was evidently much greater than that with whichthe star line can be bisected by the pointer in the ordi-narv observations with the Half -prism spectroscope.
The spectrum was exceedingly faint, but the observationswere made with comparative ease, the extreme faintnessof the spectrum being the only drawback.
•
The adjustment of this rough combination of the twospectroscopes was defective in one particular, which mayhave affected the measures systematically. Although thelines in the two spectra were truly parallel to each other,the two spectra themselves were not parallel ; the in-verted, — not the reversed, — spectrum, which was thelower in the field of view, sloping downwards towardsthe right hand, that is towards its own red end.
Position Circle, 6°.
GBHBNWIOH OBSHBVATIONS, 1880. 6 0
is COLLECTED RESULTS FOR MOTIONS OF STABS IN THE LINE OF SIGHT, FROM SPECTROSCOPIC OBSERVATIONS
Date, 1886.Sä
0
<н .
Эмъ*
«g
S gí 8ЗекUS
PositionCircle.
Width ofSlit. Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Star inMiles per Second.
Measured. Estimated.
COLLECTED RESULTS for MOTIONS of STARS in the line of Sight, from SPECTROSCOPIC OBSERVATIONS•made at the ROYAL OBSERVATORY, GREENWICH, in the Year 1886.
(F for the Star or Moon is compared with H/3 of Hydrogen ; and blt Ьу Ь4, with Mgj, Mg2, Mg8, of Magnesium.)
( + denotes Recession ; — Approach.)
a ANDROMEDA.
F line broad and nebulous. Estimated total breadth 18 tenth-metres ; central and more condensed portion 8 tenth-metres.
January 27
February ï
November 5
M
M
H
2
2
2
1
1
1
1 86
6
6
0-154
0404
0-148
F
F
F
+ 154
+ 47
+ 8-6
— 26-4
- 75'3
(- *'°)
— 23-6
- 44-2
(+ *'S)
y PEGASI.
F line broad and diffused at the edges.
February ï M 2 1 6 O-I04 F + ï S'° - 6-5 - 57
Д ARIETIS.
F line broad, estimated breadth 18 tenth-metres, but dark and lese diffused at the edges than in many stars of the type.
February ï
December 4
M
M
2
4
1
1
6
6
0-104
0-206
F
• F
+ 184
+ I 2 - I
- 854
+ I2'4
- 45'5
+ I I - 8
y3 PERSEI,
F line broad, estimated breadth г t tenth-metres. The character of the line appears to change ; it i» generally nebulous without anycentral condensation, but has occasionally been observed as dark and sharply defined.
January 27
February ï
November 29
December 444
M
M
M
MML
2
2
6
455
1
1
1
111
186
6
6
666
0-154
0-104
o'i73
0-206O-2OOO-2OO
F
F
F
FFF
+ 16-8
+ 17-1
+ 3'9
+ 54+ 8-3+ 8-3
— 50-2
- 28-6
+ 4'3
— 1 I I - 8+ 12-2
- 3*4
- 464- 307+ 2-Г
— 106-4
+ I3'6+ I2-I
AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR 1886.
Date, 1886.
о Num
ber
ofM
easu
res.
Num
ber
ofP
rism
s. Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
a PERSEI.
The P line in this spectrum resembles that of Prooyon, viz., a narrow but rather faint lino on a broad nebulous band. The latter isnearly 24 tenth-metres in breadth.
January 27
February ï
November 29
December 4
M
M
M
M
2
2
2
2
1111
186
6
6
6
0-154
0404
0-173
0-206
F
F
F
F
+ i s - i
+ 15-6+ 2-0
+ 3'5
- 40-9
— 21-2
+ 6-8
— io"4
- 34-8
- «57
+ 7-6
- 7-6
a TAURI (AldfifMrari).
F line narrow, sharp, and fairly dark ; b lines narrow, sharp, and distinct.
January z 7
March 3'7
November 1 729
December 4
M
MM
MM
M
2
22
42
2
111111
1 86
66
66
б
0-154
0-1900-153
0-1190-173
0-206
F
Fbi
FF
F
+ l6-3
+ l8'5
+ 174
- 4'1— 0-2
+ i-S
+ 22-9
+ 24-8+ 13-6
+ 44'3+ 18-9
+ 41-5
+ 8-3
+ 134+ H'9
+ 4°'°+ 18-2
+ 43-0
a AimiGJE (Capella).
F line narrow and sharp, but not very dark ; l> Ипоя narrow, sharp, and fairly dark.
January 27
March 317*3
April 6
November 29
M
M' M
N
N
M
4
222
2
2
111111
1 86
66
1 86
6
6
0-154
0490
0-1530-190
0-218
0-173
F
Fui6i
F
F
+ 12-9
+ 17-1+ 16-9+ 1 6-6
+ 15-1- 3-8
- 4'o
- S4'5+ 4*'3— 20-8
+ I'S
+ *9'5
- 3'9
- S»'S+ 46-6- 16-6
- 0-4
+ 30-2
ß ORIONIS (Rigd).
F lino narrow, sharp, and fairly .dark ; estimated breadth O'g tenth-metre.
January 27
February ï
March 3
November 518
M
M
M
MM
2
2
2
2г
11111
1 86
6
6
66
0-154
0-104
0-190
0-148o-i 19
F
F
F
FF
+ 12-9
+ 137
+ 1 6-0
- 84- 54
+ 30-6
+ 5-5
+ 194
(+ 58-5)+ 9'8
+ i?'8
+ 0-3
+ 8-8
(+ 61-6)+ 9%б
6 0 2
20 COLLECTED RESULTS FOR MOTIONS OF STARS IN THE LINB OP SIGHT, FROM SPECTROSCOPIC OBSERVATIONS
Date, 1886.fe
о Num
ber
ofM
easu
res.
Num
ber
ofP
rism
s. Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
y ORIONIS.
F line narrow, but a little diffused at the edges. Estimated total breadth 4 tenth-metres, central condensation гз tenth-metres.
January 27
February ï
March 3
November 1 8
M
M
M
M
2
2
2
4
1
1
1
1
1 86
6
6
6
0-154
0-104
0-190
0-119
F
F
F
F
+ i3'6
+ 14-6
+ 17-8- 7'z
+ 4'9
- ï 'S
+ 6-3
+ 11-5
- *'7
- 4-0
+ 0-6
+ м-б
ß TAURI.
F line broad, diffused, and fairly dark. Breadth 16 tenth-metres, central condensation 4-0 tenth-metres.
January 27
February ï
March 3
November 1 8
M
M
M
M
2
2
4
2
1
1
1
1
1 86
6
6
6
0-154
0-104
0-190
o-i 19
F
F
F
F
+ 13-8
+ 14-8
+ 18-4
- 8-0
- 38-0
- 25Ч
- 3i '5
- 8-0
- 37'9
- 25'3
- 3S'i
- 8-1
S ORIONIS.
F line faint and ill-defined, but not very broad.
January 27 M 2 1 186 0-154 F + ia'7 + 7'8 + 3'8
« ORIONIS.
F line faint and ill-defined, but not very broad.
January 27 M 2 1 1 86 0-154 F + 124 + H'8 + 7'3
f ORIONIS.
F line faint and ill-defined, but not very broad.
January 27 M 2 1 1 86 0-154 F + I 2 - I + I3'2 + 4'2
AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAE 1886. 21
Date, 1886.
О Num
ber
ofM
easu
res.
Num
ber
ofP
rism
s. Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion, of Starin Miles per Second.
Measured. Estimated.
к ORIONIS.
F line dark and distinct.
January 27 M . 2 1 1 86 0-154 F + 10-9 - 21-4 - 19-1
a ORIONIS.
Third type spectrum. The Ь lines stand out on the background of a shaded band from which it is often difficult to separate them.
March 1 7 M 2 1 6 0453 u« + I?'» + 34'° + 394
ß AURIG^E.
F line broad and nebulous.
January 27
March 3
M
M
2
2
1
1
186
6
0-154
0490
F
F
+ 1ГЗ
+ i6-8
- 35'5
- 587
- 4°'9
- SS'»
y GEMINORUM.
F lino dark but very broad, and very diffused at the edges,
January 27
February
M
M
6
2
1
1
186
6
0-154
0404
F
F
+ 9'S
+ 10-9
— 48-1
- 437
- 407
- 34'z
o CANIS MAJORIS (Sirius).
F lino dark, but vory broad and diffused at the edges. Estimated breadth 2 1 tenth-metres, central condensation 6 tenth-metres.
January ï 927
* February 26
March 3
November 618
MM
M
M
MM
2
6
13
6
6
11
1
1
11
1861 86
6
6
66
0-1500-154
0-135
0-190
0-148o-i 19
FF
F
F
FF
+ 44+ 6-3
+ i i '9
+ 12-6
- iz '3— ю-б
- 137- 3»'6
...
- 38-6
(+ 3«'°)+ 8-4
- i3 ' i- 32-2
- 57'»
- 357
(+ 3«'3)+ 8-3
* Observations made with the reversion apparatus of tho Oxford Reversion Spectroscope.
22 COLLECTED RESULTS FOE MOTIONS OP STARS IN THE LINE OP SIGHT, FROM SPECTROSCOPIC OBSERVATIONS
Date, 1886.
0 Num
ber
ofM
easu
res.
Num
ber
ofP
rism
s. Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
o GEMINORUM (Castor}.
The two componente of this double star have been observed together as one star.
P line very broad and nebulous. Estimated breadth 2 1 tenth-metres ; no central condensation.
January 27
•February 26
April 6
May ï
November 1 8
M
M
N
H
м
2
5
4
2
2
11
1
11
1 86
,6
6
6
6
0-154
0-135
0-218
0-065
0-119
F
F
F
F
F
+ 6-2
+ i+'i
+ 18-0
+ 16-4
- 147
+ 19-1
...
- 14-9
+ 247
+ 27'8
+ 32-1
- 6-4
- 15-8
+ 13-0
+ 27-2
* Observations made with tho reversion apparatus of the Oxford Reversion Spectroscope.
a CANIS MlNORIS (Prooyon).
V line narrow but rather faint and surrounded by a broad nebulous haze. Estimated breadth of haze 16 tenth-metres.
January 182728
•February 26
March 3
April 6
May ï
November 1 8
NMN
M
M
N
M
M
36I
5
4
2
2
4
11111111
со с
о со
Оч
О\
О\
6
6
66
6
0-1500-1540-154
0-135
0-190
0-218
0-065
0-119
FFF
F
F
F
F
F
+ »'S+ 44+ 47
+ 12-5
+ 13-6
+ 17-5
+ 16-6
- 154
+ 0-3- 13-8- 4-1
...
- 38-8
- 21-5
- 57'9
+ 9-S
- 13-5- 47
- 137
- 41-3 .
- 21-9
- 41/3
+ 9-8
* Observations made with the reversion apparatus of the Oxford Roversion Spectroscope.
ß GEMINORUM (Pollux).
F line narrow but faint. Ъ lines narrow and sharp but faint.
January 27
March 1723
April 6
May ï
November 18
M
MN
N
M
M
2
2
2
2
2
2
1
11
1
1
1
186
6i86
6
6
6
0-154
0-1530-190 .
0-218
0-065
0-119
F
6,
F
F
F
+ 5'3
+ 16-8+ 174
+ 18-1
+ 16-9
- I 5 - 5
- 45-1
- 29-4- 24-3
- 30-5
- 45-8
- I 5 -5
- 51-8
- 39'°- 23-8
- 29-9
- 454
- 12-3
AT THE ROYAL OBSERVATORY, GREENWICH, ш THE YEAR 1886. S3
Date, 1886. I. Position
Circle.
Width ofSlit Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
April
May
3°
бi s18
a LEONIS (Rcgulus).
F line faint, very ill-deflned, and nebulous. A specially difficult object for measurement.
N
MNMN
llll
6666
0-175
0-1450-1030-180
F
FFFF
+
17-6i7'917-9
- 17-2
+ 1-8- Н'З
- 17-2
> 34зч2>9
May м
MAJORIS.
F lino dark, broad, and nebulous.
0-065 F + 12-7 + 57 — 2-O
MAJORIS.
F lino exceedingly faint. 1> lines fairly well defined.
May
June
I
16M
N
l
l
6
6
0-140
0-150
+ 117
+ 8-7
597
S7'3
- 5*7
- 57'5
<5 LEONIS.
F line very broad and dark, and somewhat ill-donned at the edges. Estimated breadth 19 tenth-metres ; central condensation,8 tenth-metres.
May M 0-103 + 16-8 - 50-1
ß LEONIS.
F lino very brood and diffused at the edges. Estimated breadth 26 tenth-metres ; central condensation, 5 tenth-metres.
April
Мяу
30
4
N
MM
ll
0-175
0-1350-103
F
FF
+ H'2+ iS'9
- 30-5
— 10-9- "47
- 10-5- 13-8
24 COLLECTED RESULTS FOB MOTIONS OF STARS IN THE LINE OF SIGHT, FROM SPECTROSCOPIC OBSERVATIONS
Date, 1886. Il Зр-i
Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
y URS,E MAJOR is.
F line very broad and nebulous.
May
June
ï
16
M
N
6
6
0-140
0-150
F
»i
+ 117
+ 10-9
+ 1-2 + 0-8
- 2-8
y VlRGINIS.
The two components of this double star have been observed together as one star.
F line faint, broad, and diffused at the edges.
May 0-135 + 10-4 - 41-1
t TJRS-Ж MAJOHIS.
F line very brood and nebulous.
May 0-140 F + 9'5 - 5'ï - 3'°
a CANUM VENATICORUM.
F line very dark, broad, and well denned.
May M 0-153 + u'9 - 35-6 - 36-8
a VlRGINIS (Spica).
V line faint and ill-defined.
April
May
3°
418
N
IIM
66
0-175
0-1350-180
F
FF
+ 57
+ 6-6+ 10-5
- 6o-8- 74
- 157
- 534- 6-4
May
í ÜBS-ж MAJORIS.
F line dark, broad, and nebulous.
M 0-140 F 8-4 + 6-5
AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR 1886.
Date, 1886.
о Num
ber
ofM
easu
res.
Num
ber
ofP
rism
s. Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
a BOOTIS (Arcturm).
F line narrow and sharp, b lines dark, narrow, and sharp.
April 30
May 46
»318го
June 7
« 528
July 5
N
MNMNN
MNM
M
2
22
2
22
2
2
2
2
1111111111
6
66666
666
6
0-175
°4350-14504530-1800-230
0-1650-1500*124
0-150
F
FFFFF
b,*,ft.
F
+ 4'8
+ ÍS+ 6'2
+ 7-8+ 8-9+ 9-3
+ ii-5+ 13-5+ H7
+ IS1 '
— 21-0
- 71-3- 237- 35'°- 35-°- 2б'5
- 49' i- S7'3- 37-8
- 36-8
- 21-5
- 64-6- Z3'9- 394- 33'5- *7-8
- 46-9- 54-z- 387
- 38-9
€= BOOTIS.
F line faint and narrow.
June 28 M 2 1 6 o- 1 24 F + 12-7 - 15-0 - 10-4
ß LlltR/K.
F lino faint and narrow.
May 13 M 2 1 6 0 - i53 F + 17 - 24-8 - *3'3
a CORONvE BORKALIS.
F lino dark, very broad, and diffused at the edges. Estimated breadth 31 tonth-metrea ; central portion of the line 8 tenth-metrus. Thereis no very marked condensation at the centre of the line.
May 4Ч2O
July 5
MMN
M
422
2
111
1
666
6
°Ч350-1530-230
0-150
FFF
F
+ 0-7+ 2-8+ +-z
+ 1 1-4
- 26-6+ 12-8- 16-2
+ *4'3
- 23-8+ I9'6- 15-0
+ *4'3
a SBRPHNTIS.
l> linos very faint and difficult to net'.
June 29 M 2 1 6 0*124 A. + 117 - 4'° - >'5
GUKKNWIOH OnaHRVATIONS, 188«. Г, D
se COLLECTED RESULTS FOB MOTIONS OF STABS IN THE LINE OF SIGHT, FBOM SPECTBOSCOPIC OBSEBVATIONS
Date, 1886.
1 Num
ber
ofM
easu
res.
Num
ber
ofP
rism
s. Position
Circle.
Width of
Slit.Line.
Earth's Motionin MUCH per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
ß SEBPENTIS.
May 14 M 2 1 б 0-153 F + 1-3 — 14-2 - 16-2
: . ' 7 HEBCULIS.
F line broad and diffused at the edges.
May , 14 M I 1 6 0-153 F — l-l - Зб'9 - 38-8
a OPHIUCHI.
F line dark, very broad, and diffused at the edges. Estimated breadth, 34 tenth-metres ; central portion, ю tenth-metres. No very markedcentral condensation.
July S M 2 1 6 0-150 F + 57 - 197 — 19-6
y DBACONIS.
Ъ lines sharp and distinct.
June 29 M 2 1 6 0-124 ». + 0-9 + ZO'9 + 337
a IÍYRM (Vega).
F line dark, broad, and diffused at the edges. Estimated breadth 16 tenth-metres, central condensation 4 tenth-metreB.
July 6
August i o
October 1 322
' M
N
HM
2
2
22
1
1
11
6666
0-150
0-114
0-1050-103
F
F
FF
+ o-o
+ 4'8
+ 87+ 8-5
- 12-9
- »97
- 6о-8- 58'6
- 11-9
- 3i'3
- 48-6- 44'8
a AQUILO (Altair).
F line dark, very broad, and diffused at the edges. Estimations of breadth very discordant.
July 6
August i o
October 1 822
M
N
MM
2
2
2I
1
1
11
6
6
66
0-150
0-114
0-1050-103
F.
F
FF
- 4'3
+ 4'9
+ 16-1+ 16-2
- z .v;
- 31-2
- 67-6- 4Z>9
- 21-5
- 32-8
- 544- 38-5
AT тнв ROYAL OBSERVATORY, GREENWICH, IN THE 'YEAR 1886.
Date, 1886.
0 Num
ber
ofM
easu
res.
Num
ber
ofP
riem
e. Position
Circle.
Width of
Slit.Line.
Earth'» Motionin Miles per
Second.
Concluded Motion of Starin Miles per Second.
Measured. Estimated.
y CYGNI.
F and li lino» narrow, but somewhat faint.
June 29 M 2 1 ' 6 0*124 AI - 6-9 + 9'9 + 12-2
a CYGNI.
F lino narrow and fairly dark ; ft lines narrow but faint.
June 29
July 6
October 1 8
M
M
M
2
2
2
1
1
1
6
6
6
0-124
0-150
0-105
ft,F
F
- 74
- 6-8
+ 7-3
4- 0-5
— 22M
- 55'3
- 0-6
— 23"O
- 45-6
a PEG AST.
F Hue broad and diffused at the edges.
January 2 7
February ï
August 1 1
M
M
N
4
2
2
1
1
1
1 86
6
6
ом 54
0-Ю4
о- 1 14
F
F
F
4- i2'4
+ 11-2
- 9'3
- 344
- 35-8
+ 34
- 26-1
- *5 '>
+ 54
MARS.
March 1 723
April 622
30
May 4
M
N
MNN
M
44
2
I
2
4
11
111
1
61 86
666
6
0 - 1 5 3o-igo
0-2180-1370-175
e ' iSÜ
?'*i
FFF
F
:::...
...
+ 10-8- 6-9
+ 2-3+ 1-8+ S'i
- 7'»
+ Ч'9- 9'°
+ 1-5О'О
+ 4-0
- 74
VENUS.
January 16*7
MM
IOIO
11
169186
0-150O-2O1
FF
- 6-8- 13-6
- 77- 7-6
5 D 2
28 COLLECTED RESULTS FOR MOTIONS OF STABS IN THE LINE OF SIGHT, FROM SPECTROSCOPIC OBSERVATIONS
Date, 1886. ÜëI0
•g j r filE S1»
'Sgl g•S .«S
<Ëfc
Position
Circle.
Width of
Slit.Line.
Earth's Motionin Miles per
Second.
Concluded Motion of Starin Muée per Second.
Measured. Estimated.
MOON.
January 1 8
March 17
May 13Ч1820
June 1 5
August i o
November 518
December 4
N
M
11MNN
N
N
MM
M
4
5
SS44
4
5
5S
5
1
1
1
1
1
1
1
1
1
1
1
1 86
6
6666
6
6
66
6
0-150
0-153
0-1530-1030-1800-230
0-150
0-114
0-148o- 1 19
0-206
F
*i
FFFF
*i
F
FF
F
...
...
...
...
...
...
...
+ 2-5
— o- 1
+ 0-2
— Г!
- i'S- 4-6
- 54
- i'9
(+ 5-5)+ 0-3
+ 0-9
...
...
...
...
...
...
...
SKY.
January 28
February 2
March 4H
May 3
June 829
July 6
November 30
M
M
MN
M
MM
M
M
5
5
53
5
55
5
5
1111
11111
186
6
61 86
6
66
6
6
0-154
0-104
0-1900-190
0-140
0-1650-124
0450
0-173
F
F
FF
F
*,AI
F
F
...
...
...
...
...
...
...
...
+ 1-2
+ 3-2
— г'\- «'j
- 0-6
+ 4'i- 0-9
+ 1-8
— 2-0
...
...
••
...
...
ROTATION OF JUPITER.
Displacement between the p and /limbs.
May 15 M 5 1 32 0-103 F ... + 32'3 ...
AT THE ROYAL OBSERVATORY, GRBBNWIOH, IN THE YEAR 1886.
OBSERVATIONS OF THE SPECTRA of 51 SOHJELLERUP, NOVA ORIONIS, and of COMETS 1885 and 1886, made
at the ROYAL OBSERVATORY, GREENWICH, in the Year 1886.
51 SOHJELLERUP.1886, January 6.
Single-prism Spectroscope.Observer, M.
The Spectrum was very faint, and not seen at all well. It consisted mainly of a bright strip lyingbetween I and D, and interrupted by one dark band in the yellow. This bright strip was bounded towards theblue by a broad dark shaded band in the green near h, the light beyond being so feeble that the sharp edge ofthe band might be almost said to terminât« the spectrum in that direction. Towards the red, the bright stripwas bounded by another dark band near D, which might in like manner be almost said to terminate thespectrum in that direction, only a very feeble light being traceable beyond it.
The star spectrum was compared with the spectrum from a Bunsen flame, and the bright band in the greenof the Bunsen flame was seen to be closely coincident with the dark band in the green in the star spectrum.The coincidence of the bright band in the yellow of the flame spectrum with the dark band in the yellow ofthe star spectrum could not be directly observed so satisfactorily. A measure however appeared to show that it
• was very close. The third band in the spectrum of the flame, that in the blue, was not compared with the starspectrum, that region of the star spectrum being too faint for examination.
The following measures of the positions of the sharp edges of the bands in the green and yellow of thespectrum of the star, as compared with the corresponding bands of the spectrum of the Bunsen flame, wereobtained :—
ObjecteCompared.
Star
Bunsen flame
Star
Bunsen flame
Star
Bunsen flame
BandObserved.
Green band
do.
Green band
do.
Yellow band
do.
MicrometerReadings.
r0-389
0-282
0-983
0-999
0-695
0-671
Displacement.
In Revolutions.
r+ 0-107
— O'Ol6
+ 0-024
In Wave-length.
tenth-metres.- 4'3
+ 0-6
- i-3
InferredWave-lengthof Star Band.
tenth-metres.
51597
5164-6
5631-7
MeanInferred
Wave-length.
tenth-metres.
)
V 5162-2
i
5631-7
Thal en's wave-lengths for the less refrangible edges of the bands in the spectrum of the Buueen flame havebeen assumed as follows :—
Band.
Green band
Yellow band
Wave-length.
tenth-metres.5164-0
5633-0
зо OBSERVATIONS OP THE NOVA OEIONIS AND OF COMETS 1885 AND 1886
NOVA ORIONIS.1886, January 6.
Single-prism Spectroscope.Observer, M.
No details additional to those seen on 1885, December 29, were made out ; indeed the spectrum was not seenso well now as on the former occasion.
1886, January 11.
Single-prism Spectroscope.' Observer, M.
The star was now much fainter and paler than on December 29 and January 6. The red and blue endswere too faint for any details whatsoever to be made out in them, and the beauty of the spectrum as it hadbeen seen on December 29 was quite lost, the vivid alternations of light and darkness being now not nearly soconspicuous and well defined.
Only three dark bands were clearly seen, and these could not be satisfactorily, measured. These werebands V., VI., and VII. of the numeration employed in the observations of ß Pegasi made on 1876, October 18 ;wave-lengths as then determined, Л 5450, A 5164, Л 4953. In Dunér's nomenclature, these are bands 6, 7, and 8.Immediately beyond band VI. towards the blue, the spectrum was, relatively, very bright, and might well havebeen supposed to indicate the presence of bright lines, but this district is always very bright in stars of thistype. The dark bands seemed narrower, and not so dark as on December 29, and the bright intervals or zonesfar less bright than on that occasion, the zone just alluded to being the only one retaining any large proportionof its former brilliancy. It is clear therefore that the diminution of the light of the star was not accompaniedby an increase in the breadth and darkness of the dark bands, but by a diminution in brightness of the generalcontinuous spectrum.
: COMET e 1885 (BARNARD).1886, March 31. '
Half-prism Spectroscope. One "half-prism" reversed.
Observer, M.The comet was very faint and great difficulty was experienced in bringing it on to the slit of the spectro-
scope. The spectrum consisted of the usual three bright bands, sharp towards the less refrangible edge,and shading off towards the more refrangible. Of these the one in the blue could only just be discerned ; theone in the green was as usual very much brighter at its sharp edge than was the one in the yellow, but it wasnot traceable so far towards the blue, for whilst the yellow band was traceable almost up to the green band,the latter could only be traced to about Л 4965.
The green band appeared to be about 72" in height, the yellow band about 43" or 45" or perhaps even 48" or50" ; but the yellow band was nearly as high at its faintest point as at its brightest. It did not fade awayrapidly towards the blue as the green band did, but continued with very little diminution of brightness for along distance from its bright edge. There was, however, a broad distinct dark gap between the last trace ofthe yellow band and the bright sharp edge of the green band.
There was no trace of a continuous spectrum seen, although the comet showed a distinct stellar nucleus.It was not found possible to get any satisfactory measures, but it was quite clear that the green band coincidedvery nearly if not exactly with the green band of the spectrum of the Bunsen flame, and not with the greenband of the spectrum from a vacuum tube filled with carbonic dioxide. Indeed, if there was any want ofcoincidence with the spectrum of the Bunsen flame, the comet band lay towards the blue of the band of theBunsen flame, and not towards the red.
The height of the blue band of the comet spectrum was about 29". The yellow band was traced from aboutA. 5633 to X 5226.
AT THE ROYAL OBSEHVATOHY, GREENWICH, IN THE YEAR 1886. SI
Half-prism Spectroscope ; one " half-prism " direct.1886, May 4.
Observer, M.
The comet was not observed until the dawn was very far advanced ; and the spectrum could only be seenfrom the actual nucleus, as the light from the sky was so strong as quite to overpower the light from the comaand tail of the comet. The blue and green bands were seen, the latter being particularly well defined.
The following meaHures were obtained of the Green Band :—
Date, 1885.Greenwich Civil
Timo.
Il Ml
May 4. 3. 35 |
3-45 1
Objeot.
CometBuneen-flmm»CometBunsen-naine
MiorometorHandings.
r0-507
o'3790-5680-626
Displacement.
In Revolutione.
r+ очг8
— 0-058 '
In Wave-lenpths.
toiith-metrea.
+ ГЗ
- 0-6
InferredWave-length of
Comet-band.
tenth-metres.5165- 3
5163- 4
Mean. 5164- 4
The comet was lost in daylight immediately after the second measure.
Thalén's wave-length for the less refrangible edge of the green band in the spectrum of the Bunsen-flamehas been assumed, viz. :
tenth-metres "
5164-0
СОМИТ/ 1886 (BAllNARD-HARTWIG).1886, December 14.
Half-prism Spectroscope ; one " half-prism " direct.Observer, M.
Great difficulty was experienced in bringing the comet on to the slit of the spectroscope. Finally, how-ever, a good view of the spectrum was obtained. The three ordinary bands were seen very easily, but none ofthem were sharply defined. A faint continuous spectrum,—whether from general sky illumination, or fromthe comet itself, was not determined,—spread over the field, and much interfered with observation. Thefollowing measxiros were obtained of the sharp less refrangible edge of the green band in the spectrum of thecomet as compared with Mg, of the magnesium, spectrum. The comet was lost in the murkiuess of the loweratmosphere before any measures could be secured of the other bands.
Objectacompared.
InferredWave-length of
Comet-band.
CometMg.,CometMg3
CometMg, ..
Angstrom's wave-length for i»4, 5166-88 tenth-metres has been assumed as the wave-length of the Mg3 line ofMagnesium.
Blank page retained for pagination
ROYAL OBSERVATORY, GREENWICH.
MEASURES OF POSITIONS AND AREAS
S P O T S A N D FACFL,EU P O N THE SUN'S DISK
ON
P H O T O G R A P H STAKEN WITH THB
P H O T O H E L I O G R A P H SAT GREENWICH, IN INDIA, AND IN MAURITIUS,
WITH THB DEDUCED
H E L I O G R A P H I C L O N G I T U D E S A N D LATITUDES.
1886.
OBSERVATIONS, 1886. r> E
34 MEASURES OF POSITIONS AND AREAS OP SPOTS AND FACULTE UPON тны SUN'S DISK
MEASURES of POSITIONS and AREAS of SPOTS and FACULTE upon the SUN'S DISK on PHOTOGRAPHS taken at the ROYAL OBSERVATORY,GREENWICH, at DEHRA DUN in INDIA, and at the ROYAL ALFRED OBSERVATORY, MAURITIUS, in the Year 1886.
NOTE. — The Greenwich Civil Time at which the photograph was taken ii expressed by the Day of the Year »nd decimals of a day, reckoning from GreenwichMidnight, January ï*- ob.
For convenience of reference the Month and Day of the Month (Civil Beckoning) are added.The letter I. signifiée that the photograph was taken in India ; the letter ÏI. that the photograph was taken in Mauritius ; the time given i» Greenwich Civil Time.The position-angles are reckoned from the North Pole of the Sun's Axis in the direction N., E., 8., W., N.
GreenwichCivilTime.
1886.Od '2IO
M.
Jan. ï
1-424
M.
Jan. 2
3-240
M.
Jan. 4
É
Sя
SP, H
.H, SP
SP, H
1*
•eea
íeo
o'M
18191819181918191820l82O«
181918191820«i82ia
1820«1822182218221821«182118211 82 1 г»l 8 2 I
1&
v
M•3
£««H n
o> eu SÍ02
Ioô
0-9830-9750-7090-6480-6350-6200-8910-893
0-8360-8380-8790-8250-7410-987
0-9850-9680-9460-4370-7830-7980-8040-8540-8710-8790-8900-9220-8640-948
3'Л
a£
v
ã5•<.2.8•3 иgo
и
294'2
286-5284-0284-3285-8286-8
75-27 8-4
265-1251-528o-6280-8
74-61 02 -6
278-5252-4294-6
59-395-096-1
103-3102-3103-7102-8
105-2i io- i
74-0
HELIOOKAPHIC
aï•e•1e»3
0
280-3279-0247-3242-5241-4240-1142-1141-5
244-2243-6247-9242-0141-4106-4
243-1239-6231-6141-61 1 2-4I I I'DI I0'4I05-5103-5IO2-6
lOI ' I
96-8
104-9
94'3
a•|^
о
4-23'c
+ 15-3+ 7-5+ 6-6+ 7-3+ 77+ 1 1 -6+ 8-8
— 6-0-17-4+ 77+ 6-9+ 9'°— 13-0
+ 77— ï 8-0+ 21-8
+ 9'5- 77-- 6-2
— 7'i-I3'3-12-6-13-8-13-1-15-4-19-2+ 13-9
SPOTS.
ss(H ЧЧ
selffl-^Я -gö£•8*Ç£ SO
•<)
IOо0оо
10
(20)
'3о8
12
(33)
7ïоо
78оо
1 1о
(97)
II
О'—'
Ц•S^çH ^^о
6525
444
164(266)
62
864
4°3(537)
32u
74
4723212
956
(671)
FACUL-Ж.
g-
CS.Jílí
Sa
•м-— •о
131236
1>122C
J'(f 333''"
(822)
43209234'"
85c325«
(896)
62516949
)\ 3 f)c\
Л
U 86.f
JIO2
604
(2174)
GreenwichCivilTime.
1886.
4"'492
Jan. 5
5-216
M,
Jan. 6
6-148
I.
.11я
H, JH
EP,H
H,BP
.
10
TJ
*
f0
á«!Й
l82O«
18211821-18211821«182118211821^
1820«1821182118211821«1821182118211 82 1 Ъ
1 820«1823182318231821
i£Û
lá^тз
í ш
S "9at«»"gQ
0-2480-643О'ббо0-6690-6750-6990-70407380-833
0-983
0-9370-9420-2430-5210-5470-5400-5520-5590-5840-5910-6330-8150-9330-9130-951
0-9710-3620-0550-0280-0490-340
'9СИ
g1
ТоЯ
||
(ь
0
22'5105-21 1 1-IIO2-2
Ю7'1Ю4'о105-8Ю4Ч
71 "6
252-6260-5284-9344"9107-0и 47юз'8I I O - I
io5'iП4'8ю8-6Ю5'9
66-661-786-164-9
251-9309421 1-6
177-0'33'9I I 5 - I
НЕЫООПЛРШС
oîТ5
5§J
о
141-6107-8Ю7'3» O S ' SЮ5'5юз'Зюз'1IOO-I
93-1
21742О7'1
2OÓ-2
141'2107-01064Ю54Ю5'3104-2юз'9Ю2'4
99-086-373472-0
бд-о
2О1 -91417127'О125-2
123-3Ю7'о
13J
0
+ 9'5-12-7-l6-6
— iro— 14-3-I2-5
— 13-8
-13-2
-t- I3'O
-I7-8
-10-3
+ 12-7
-t- 9'6— I 2 - I
-16-5-10-7-14-2— iro-174-14-1-13-1+ 164+ 24-6+ 2-0
+ 22-4
-18-6+ 94- 6-7- 5-6- 6-0— I 2 - I
SPOTS.
•8 «2
K e
И-2-
olUï*g ia•4
4oo8
54oo
14(8o)
5i2
36o
Ooo8
(79)
i3o3o
Ilн TIi-З So-SИ«
rt *H я*£ ЗД0
17'3'748
4°48
12
63
(582)
1024H22
34632
377
(Soi)
785
i62
FACUL^Î.
g.
u|Ç
"II3 á
3
• \$гг,
J306
(438)
1141 1 1
50
2169368
1 31
(783)
148
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there in a Faculaunaccompanied by a Spot. The positions of Facultn relative to the Spots with which they are associated are indicated by the letters я, к, j>, f. r, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Facula; are expressed in millionths of the Sun'« visible Hemisphere.
Group 1819, 188; Dec. 25-1886 Jan. 2. Three small spots on Dec. 25 ; two small spots on Deo. 26. The group has expanded by Dec. 27 into a short straight streamcomposed of many «mall spots. The stream tends to form two compact clusters of spots, and by Jan. 2, the following cluster has disappeared and the precedingcluster has become a regular spot with one small companion.
Group 1820, 1885 Deo. 31-1886 Jan. 7. A regular spot, n, which diminishes in size from day to day. A small companion is seen near it on Jan. ï.Group 1821, Jan. 2-15. A large regular spot, a-, with two nuclei. The northern portion of the spot, containing the smaller nucleus has become detached from the
principal portion of the spot by Jan. 5, and has broken up into a number of small spots, n. is followed on Jan. 4 and the succeeding dayi by a fairly large spot, b.and a number of small spots. Small «pots are also seen preceding n 'on Jan. 5, 6. and 7. b hau divided into two portions, ï: and d, by Jan. 7. с Ьан dinappoaredby Jan. lo.
Group 1822, Jan. 4. Three small spots.Group 1823, Jan. 7-ю. Three small spots on Jan. 7 and 8. Only one is seen on Jan. 9, but two on Jan. 10.
ON PHOTOGRAPHS TAKBN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 35
Measures of Positions and Areas of Spots and Faculro upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.6''-I48
I.
Jan. 7
7-216
M.
Jim. 8
8-196
M.
e£
Я
H, KP
н,ш?
ИР, M
1
h4
1nft
и
i*182118210,182118211821182118211821^i 8 2 i d18211824»18246
1823182318231821«182118211821i 8 2 i e182 irf182118247.)18251826«18262*18260
182318211821«182118211821
I
.S
1Ss°âКs "g9<я1*8
0-3500-3750-3570-4190-4410-4200*431°4550-47004730-5390-5780-8460-8770-9380-9480-964
0-3030-2550-2230-1980-271o'i 500-2240-2540-2710-3020-4100-8360-9570-9860-9920-8540-856
0-4800-189O-22O
0-I58
очбб0-183
iза
1*И
V
íя .
I1
о
1 1 I'D
I 19-3
I07-S
I27-5
128-5
I2O-2
I I 5 - 4
I I O'4
II3-3
I I O*4
59'960-354-070-989-599-072-0
261-8261-8263-1154-3160-7146-3139-8128-0132-0131-043-498-992-893-394-386-669-7
265-0227-9218-3238-2198-8178-7
НИЫОвНАРШС
I
о
i°5'91057105'2
Ю4'9юз'9Ю3'2
Ю1'799'599-098-з9б-9944
66-6. 55-8
53-752-9
128-7125-8124'О
юбч105-8Ю54Ю2'7
99499'397'б94454'538-130-828-452-9SS'2
126-9юб'5юб'Зюб-1ioi '498-0
«тзJhi
о
— I ГО
-Ч'З- 9'9— 18'4-197-15-9— Ч'З-12-7
-Ч'З-I3-I+ I2-I
+ I3-2
+ 27-3+ Ч'б— о-д- 9'9+ l6'2
- 6-4- 6-0— 5'°"-Ч'З
-II-3-13'9-13-0-44-154+ '34- 97- 3'9- 4'о- 4-8+ 0-8+ Ч'о
- 6-1-11-4— 14"о- 8-9
-13-2
-4'7
SPOTS.
SS '«H «н
'"''ааз4-"
аи•g -í."S Q
676
О
2
О
2
2
I I
I I
О
0
о
(i i7)
3оо
48ооо45оо0
91бо
(85)
0
0
570
оо
IIHTaO-— •И«££•M .
ill
32340
2
152
4186376
2
43
(599)
9154
34312Z4
7177512
IO
497
22782
(938)
78
33662
25
FAOUL.S3.
f
Оja "Г;
láч Йl-s
l1
90чз62156228
(837)
76,,-i1
39287
GroonwiohCivilTimo.
I886.8a- 1 96
M.
Jan. 9
9-155
I.
Jan. lo
10-210
I.
f
lBí
BP,M
SP, KP
KP, SP
31'S
ísCS
•°|
l82ic;l82lrf
1824«:1826«18266
18261:
182318231821i82ir t18211821l82lrf
1821182401826«18266I82ÓC
1826
1827«182718271821»18211821182 1(118211826«18266182618261826,,-
1.3ïIsul
Jis gs°
0-1460-1740-2780-8660-9250-9420-903
0-8330-6660-6270-3650-3780-3520-3790-2790-2700-3420-74°0-8230-8540-8580-923
0-9590-8340-8380-6970-6550-6490-5830-5670-4860-4820-458°'5540-6580-6730-6960-698
132
|
•«
V
ta .1-яS""6
o
187-0185-1
0-392-392-293461-8
281-4265-2264-7249-1243-0243'5233-7232-1220-7323-6
91-691-392-293'995-3
283-3264-3208-8258-5256-92S9'3251-9244-6251-5248-2243-3
91-290-493493491-5
HELIOGRAPHIC
<£
•ь§
0
99'399-298-238-330-727-938-6
140-8127-4124-5106-0105-9104-5104-298-796-297-638-030-227-126-617-9
437128-2l l l ' O
115-6I I 2 - 2
I I2-O
106-4
104-1
99-899-196-838-130-629-427-6
4Ïтзs'•g
о
-12-5
-I4-I
— 4'2- 3-6- 47+ 23-2
+ 7-0- 6-4- 6-7
-13 '9-I3-I-17-0-14-0— l6'O
+ 117— 4"2
- 3'5
- 5-6- 6-6
+ и '4— 7'2
-50-5— in-II-9-10-3— 14-0-17-8-12-7
-14-2-15-8- 44- 3-6- 5-6- 5'5- 4'2
SPOTS.
Il^Tâ00-2-
*îil!
0
4о
2O
446
(130
0
оо
71
оо8о0
3^So90
(«74)
2
0
0
73оо2
О
24
44оо4
IlS тзSIan•g"0-§11
2
66
3I II239103
(908)
2
2
3284
2
3140
21
4158230
49i i
(909)
б!
136
3 « 592
73i l
45254
12
455
FACUL.S:.
1О•gS
|«2
j!
884<-
123(1007)
158
75'1
)4856-
)690
(408)
12915642
)*• IOOC
j()
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, .',;>,/, c, denotingrespectively north, south, preceding1, following, concentric.
The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hemisphere.
Jan. ii. Photograph faint. Faoula) ill-defined.Group 1824, Jan. 7-ю. Two very small spots, a and ft, on Jan. 7. The preceding spot, a, has disappeared by Jan. 8, and the following, ft, by Jan. 9, but another very
small spot, c, has appeared in the neighbourhood.Group 1825, Jan. 8. A small spot.Group 1826, Jan 8-17. Three regular spots, n, ft, and л a has broken up into a number of small spots by Jan. 13, and о has disappeared by Jan. 14. A few small
spots are seen near the principal spots on Jan. 11, and the succeeding days.Group 1827, Jan. 11-13. A spot, a, followed on Jan. n by two small spots. Of the latter one has disappeared by Jan. 12, and the other by Jan. 13. Another email
spot is soon near a on Jan. 12.
5 ЕЙ
36 MEASURES OF POSITIONS AND ABEAS OP SPOTS AND FAOUL-Ж UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculae upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.IOd '2IO
,
'
Jan. 1 1
1 1-231
M.
Jan. 1 2
12-266
•I.
îiя
BP,SP
H, EP
SP, H
1
3'O
£ôli-fc
1826
1827»182718271821«1821^18211826«18266182618266'1828182818281828
1827«1821018211826«!826
I826&I82ÓC
1828«18281828182818281828182818281828
i.aJIs
1•ip »f 1Ie0
J 'SФ
0-7100-8440-948
0-9300-7660-7160-8470-8320-8080-744О'ббо
0-6410-3400-4560-4760-5040-4880-5230-5300-5720-888
0-8150-9520-8790-8030-1160-1480-2370-2880-2540-2830-2790-3120-3190-3370-3430-3490-377
1
1•Д
Ф
Ía .
13&
o
95-192-6
103-9
206-22507260-3260-4262-1261-0255-9254-4251-9
89-688-091-190-6
103-3102-8
99-2101-3106-8
290-9259-1256-2254-2
87-7104-4
84-989-9
117-3118-4112-1
I I 5 - O
I04-3
I 124
I08-3
lOI ' I
106-7
HELIOGHAPHIC
о)
1
о
2б-5
H'1
359'9
126-7107'S103-9I I 6'2
II4-7
I I 2 - 2
I об'О
99-0
97'2
38;s29'928-129-5
26-5237
355-8
96-2117-2106-3
97-838-136-4
28-031-530-029-528-026-626-225-424-523-3
6•o
e3
О
- 6-7- 4-6— 14'6
- 5-2-17-7— IO-I-10-5- 9'i— lO'O
— 13-5— губ-15-0- 4'2- 3-1- 4' 5- 4'2— 10-4-10-5- 8-7— IO-I— 16-9
+ 14-0-II-8-14-4-15-4— 4'3- 6-7- 3'3— 4'4— I 1-2
— 12-2
— I0'4
— I2-O
- 8-9-11-7-10-5- 8-2-10-5
SPOTS.
е ё<М<Й
<jr^M!
el.ч-с02^
*1д•3
о
(49)
17о2
62
I.
I
20
33I43о77
(158)
"764
о5о
4°ï
33ооо
21
I
О
о0
Ji-SНиз
gl
|
jll•4
IO
(970)
1066
26317
315
117224
163828
73735
(993)
122
345168626
257• 13165
412
88813
i6
53
FACUL-Ж,
ft
rh
•si?*
I"2
si•3
44154
047)
14010762
}> in с}
71
(490
337
l ЙЙОf
Greenwicl:CivilTime.
1886.12Л'2б6
I.
Jan. 1 3
'3-524
Jan. 1 4
14-257
M.
sIя
SP, H
H, JH
SP,BP
1
1'Sge6
il1
182918291829
1821018261826^1828«182818281828^18291829
1821«18261826182618261826182618261826018261826182801828182818281,828/;18281828182818281829«18291!*
i
.9
"S Ш
o|
«H соf g|cobД
0-9670-9670-9740-959
0-938
0-9730-1960-0630-1310-1420-1250-08 10-8350-873
0-977
0-9540-997
0-3850-3610-348
0-3430-2970-2530-2320-224O-222
0-184
0-272
0-2I7
O - 2 I 2
0-I92
0440
0-153
0-I52
O-I29
O'! I I
0714
0732
1со
1«H
tt>'ьЬ1и:| -áРн
0
78-079-179-8
102-5
286-0256-6274-7294-7217-9198-5186-7154-2
76-677-2
256-7287-9256-1272-7273-1265-3271-7263-7273-9283-4276-8287-8284-5247-8241-8235-0236-1242-3233-6220-1
222'7
225-0
734
HELIOOEAPHIO
a!1
«
o
330-9
3307329-0
330-8
957105-2
39'331-432-830-729-026-1
333-1328-8
96-988-8
105-141-239738-938-635-833-231-631430-828-833'429-828-827-925-825-724-323723-1
335-0333-8
v"OS
á
o
+ 10-3
+ 9'3+ 8-8-I3-3
+ 13-2-14-1- 37— 3"2— IO-6-12-4-II-8- 8-9+ 8-5+ 8-8
— 14-0+ I5-5-4'3- 3'4- 34- 6-2- 4-0
- 6-5- 37- 1-6— 3-2- 0-9— 2-1— 10-6— IO-6-II-7— 10-9- 8-5— lo-o-11-4— IO-2
- 9'3+ 8-3+ 9'5
SPOTS.
ë e•H 'S
""'U
P S.<t-|M^,
sll•5
ooo
(182)
180
1877
o0
0
46
(123)
oo0
oo0.
3o
250
0
68o60
12
3ooo
I I4
е ё«S «8HTJ
öl
<я
ato•Ч
339
(1305)
17053
155411
9
17499
125
(1227)
IOO
IO
I I6
186
282
134
52
476
29IO
. 5159
28432
5774
FAOULA:.
P.
C5
•s "iIQ
•l44
s!•5
)> 241 с)
221
(487)
2OO
338 с
1256 '
(ббз)
333244
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faculaunaccompanied by a Spot. The positions of Faculaa relative to the Spots with which they are associated are indicated by the letters n, a, j>, /, n, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculte are expressed in millionths of the Sun's visible Hemisphere.
Jan. 12. The image of the Sun on this photograph is decidedly elliptical. The positions of some of the spote appear to be affected to a small extent by distortion of thephotographic film.
Jan. 14. Photograph faint. Facuke ill-defined.Group 1828, Jan. 12-2Г. Several small spots on Jan. 12, arranged in four clusters. The group increases in size very rapidly. On Jan. 13, it consists of a large
regular spot, a, followed by a scattered stream composed of many spots, mostly small, a has very greatly increased in size by Jan. 14, and most of theemail spots following it have coalesced to form a large spot, b, b has broken up by Jan. 16, but the small spots have coalesced again in a differentmanner, to form one large spot, c, by Jan. 17. о has broken up by Jan. 19.
Group 1829, Jan. 13-22. Three spote on Jan. 13 ; flve spots arranged in two clusters on Jan. 14. The two spots, a and I, which form the preceding cluster,have separated a little by Jan. 15 and are measured separately- The following cluster has broken up into a number of small spots. The group extendsin longitude on the succeeding days but diminishes in area, b has broken up into a number of small spots by Jan. 19. Only a is seen on Jan. гг.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 37
Measures of Positions and Areas of Spots and Faculro upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.
4d'257MJYL.
Jan. 1 5
I5-45I
Jan. 1 6
16-541
Iiя
SP,BP
H,JH
H,JH
11
1f
^Ó«!
fc
18291829
182618261826211828»18281828182818281829«182918292»182918291829182918301830
182618262»18280.182801828182901182918292»18291829182918301831
i.9V
í'uId
il.i'SQ
0-7690-7850-892
0-9210-8230-5960-5150-4830-5110-4530-4350-4090-3750-4970-5050-5220-5360-5650-5820-5990-9670-9770-9490-951
0-9080-7180-6910-7030-6300-5880-3090-3040-3270-3620-3900-4020-8710-933
"I&|
•ti
-ãI
l-ár0
74-873-994-8
28772587269-7270-9271-5257-9254-72597256-1259-5
63-066-463-767-567-465-667-490-992-368-696-3
290-1269-9270-2260-5260-8263-8
37-844-044-051-249'553-089-794-2
HELIOGUAPHIO
.
0>
fJ
о
330-2328-9315-4
67458-239'333731-633-229-128'420-524'6
ззб-з335-1334-6ЗЗЗ'оЗЗ 1 " 1
33°'4328-9287-7285-2294-3290-6
50-534-131-932-927'3
337-333б'1335-1331-8330-93294287-9279'3
о!-О
'•§
^
о
+ 8-4+ 9'5- 6-5
+ Ч'2— I2-I
— 4'2
- 3-7- 3-6— 10-3— ц'З- 8-9
— 10-2
- 8-5+ 8-6+ 7'3+ 9'1
+ 7-6+ 8-4+ 9"8+ 9'2— 2-1
- 3'3
+ 18-5- 7'S
+ 15-9— 3-6- 3'5— IO-2
- 9'7
- 77+ 9'2
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— 2'2
- 5-8
SPOTS.
е ёмЗчч
Ш •— '
Я Ф
'S*-
S*! •*"
•Ч
34
(49)
35
20
7050
20
58о
10
о60
ооо
(152)
о3
б4
13О
42
72
0
О
оо
II91оЛw
"*•£§ §á<
850
(1233)
3523
123
684
89
743123582118ю3421
22
(ибо)
I I
«4482466
8Чn43
84
315
Ч
FA.OULJE.
g.
о .•s frleël44 ч
§1•ч
382Г124
(ю83)
124
107
'94е
237148
(8ю).
92
364"'|+бб-
Greenwich
CivilTime
1886.l6cl'541
Jan. 17
18-508
Jan. 1 9
19-514
Jan. 20
20-142
I.
Jan. 2i
21-213M.
Jan. 22
22-239
M.
Jan. 23
8
iЯ -
H,JH
H,JH
H,8P
H,1P
SP,H
KP, H
1I
1íSо
àXLfc
i8z8a182818281829«182918291829
1828«18281829«1829182918291829
18281 829a182918291829
1829«
18321832
i.g
lila
•fc^BI
о а
•S 2.Я оa
0-8780-8490-9470-982
0-9370-9310-9020-8840-3680-3550-3210-327
0-9290-9900-9650-5480-5290-5380-5010-486
0-9970-6600-6470-6350-6190-8270-902
0-9830-815
0-8990-8520-1620-147
img
*
UI
I.S
ï*о
63-096>969-987-8
270-0261-1262-7261-8312-63I3-5312-1320-0
269-4260-7261-4297-2295-9300-1298-7302-9
259-9291-3293-0291-1292-8757
110-3
262-2285-9
283-2251-3255-1248-3
HKLIOGRAPHIC
11
•2
о
291-7290-1
'279-9269-6
31-931-427-1
24-8338-4337-6336-3334-8
1773172.4-7
339-0338-2337-7335-8333-9
27-23394338-13377336*2247-0236-6
,
6-83394
335-6331-6282-4281-2
.B1л
o
+ 20-S
- 8-5+ 17-2+ 1-2
- 1-8— IQ-2— 8-8- 9-6+ 9'5+ 9'2+ 74+ 9'5
— 2-5- 9-8- 9'7+ 10-0
+ 8-8+ 1ГО
+ 9'2+ IO-6
-10-5+ 9-7+ 10-4+ 8-9+ 9-5H- 87— 20-6
- 87+ 9'6
+ 9-3-18-8- 8-0- 8-6
Вгота
е ё«s «s.<«к SЯ-g
A >*
•ч
(95)
24о
IO
0
ооо
(34)
2712
2
О
О
О
о(40
о4ооо
(4)
2
(2)
О
О
(о)
II910-S-W
•SÍ15§ $Q•<
(1181)
46149
1408745
(674)
4488293352
(552)
loi
13
420
5
(203)
7<7)
6S
('О
FAOULAÍ.
P.
Ô .
•s fr1«
**§1•ч
4i175152
101
(1171)
8o( ,j
(342)
123
| 531"/
(654)
9520-
313122
1И9У)-\i 9Ô*T]
Ц9544«
(539)
34179
(420)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Fnoulaunaccompanied by a Spot. The positions of Faoultu relative to the Spots with which they arc associated are indicated by the letters w, B, p, f, c-, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulm are expressed in milliouths of the Sun's visible Hemisphere.
Jan. 16. Photograph faint, Faoulro ill-defined. Jan. 19 and 20. Photographs very faint. Spots and Faoulro ill-deflued.Group 1830, Jan. 16-17. Two small spots on Jan. 16. The following spot has disappeared by Jan. 17.Group 1831, Jan. 17. A small spot. Group 1832, Jan. 23. Two very email spots.
38 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULTE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.23d'545
Jan. 24
24-154
T
'Jan. 25
25-423
Jan. 26
26-475
Jan. 27
27449
Jan. 28
28-164
I.
Jan. 29
29-263т
Jan. 30
30-231
M
Jan. 31
.
1я
H,JH
H, EP
H,JH
H,JH
H,JH
BP, H
SP,H
SP,H
1fes0scC
0
^tgco
1833«
18331833«
13su)»3
1§|«
i "ÍIм
.2*0Д
0-9790-966
O-giO0-8240787
0-887
0-916
0-851
0-973
0-950
0-9130-827
0-950
0-800
0-88 10-927
0-9350-9070-8700-8580-967
0-9120-9610-973
0-8740-8800-937
'aUJ
1Ч-.
vTb<§ «
'•§ иS-4
CL,
O
280-1253-0
262*2287-1303-0
264-5296-4269-2
295-1268-0288-7274-8
75-1•
294-972-1954
291-3273-5252-3282-1101-6
280-6103-6
75-5
105-9103-4
72-3
HELIOGBAPHIC
f
%
0
333-1332-1
314-0301-3293-1
294-1293-0289-7
290-2289-5280-7273-0148-0
259-5145-6136-5
261-1260-0256-0252-9119-5
2454106-3106-4
106-91 06-1101-3
i1J
о
+ 8-7-i7'9
- 9'5+ IO-6+ 21-3
- 7'5+ 21-4- 37
+ 22-7
- 37+ 44+ 0-7+ 12-2
-f I/-8
+ 12-7
- 7'3
+ 174+ 0-7-18-3+ 7'i-127
+ 7-1-H7+ I2-6
— 16-9-14-7+ 14-2
SPOTS.
В 0«H ЧН
«•J-тз
SiPS.
CG
°л£
•<
(о)
(о).
(о)
(о)
(о)
(о)
0
(о)
о21
(21)
IIНтз
g!Êt =
gif•Ч
(о)
(°)
(о)
(о)
(о)
(о)
196
(I96)
6161
(167)
РАОПЬЛ.
gО
"S и'SQ
»e
«•i
23293
(325)
цо8o
151(370
9°170
52(312)
23554
126156140
(711)
43124146
(313)
152786o
207277
(774)
200'296 с
59(555)
)f 394 >'
297(691)
GreenwichCivilTime.
1886.3id48o
Feb. ï
32-289
I.
Feb. 2
33-280
I.
Feb. 3
34-567
Feb. 4
35-I48
I.
iи
H, SP
H, SP
8P,EP
H, SP
H,EP
«SK
1J
'OS
£
U~,*i11fc
1833«
i8331833183318331833«1833
18331833183318331833018331833
18341833183318331833183318331833«1835«
183318331833
1$.g
Ч »
°l|м
ilя
0-716о-763
0-7720-886
0-8960-5180-548
0-5780-5680-5780-6010-8100-968
0-2970-3230-3530-3830-3920-4190-4200-8810-91 1
0-0750-1580-175O'l6l
0-1770-1890-1810-1670-9670-8980-902
0-3380-2470-248
"ice
1•И
44
J -áP«
о
i°4'9114-2
99-867-9
253710971 10-4114-8109-9107-2113-0634
100-3
I 2 I - OI2O-2I2O-OI 17-0112-7120-8113-665-,lui -6
261-9202-9
193-5187-1178-6175-1160-6150-898798491-6
228-0236-2229-6
HELIOGBAPHIC
ci-О
fо
юб-iЮЗ"!1O1-O
93-1
205-2ï ю-8108-9107-5107-4106-4105-5
92-064-9
I I 2 - 8
I 11-2
I09-5
107-3
Io6-2
IO5-8
I04-6
70-8
61-8
115-4114-7I 1 3 - 51 12-3i IO-8HOT107-5106-3
35-346-846-6
118-8115-6114-7
V
1
>3
о
-15-0-22-4
-II-5+ 16'3
-17-4-I5-5-16-3-I9-3-16-3-15-0-18-7+ 17-2-n-6
-14-9-15-4-16-2
— 15-9
— 14-6
-18-2-15-4+ 18-4-13-2
- 7-0-147-l6-2— ï 5-6-ï 6-6-17-2-I6-2
-47— I0'0-10-3- 4-3
— 19-2— 14-1-15-5
SPOTS.
Il•«jnag!ëî***•Ч
23
(23)
4iо8
28
о
(40
5оо9
' 30оо
(44)
о0
4оо2
3
1545
(69)
оо7
M ь0 О
W"b
giW -g
s so•ч
I 82
(182)
3i5
12
19l66
13
(246)
20l6
IO2O
142
56
(219)
•35
342
52912
126
441
(667)
53
53
FACULTE.
f
СЬ .
ь*
il•3
10367
243(413)
125
109163
(397)
162270
(432)
3426-222316
(88o)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faculaunaccompanied by a Spot. The positions of Faculae relative to the Spots with which they are associated are indicated by the letters w, »,2>,f, Л denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculse are expressed in millionths of the Sun's visible Hemisphere.
Jan. 24. Photograph faint. Jan. 35. Limb ill-defined. Jan. 26 and 28. Photographs faint. Faculto ill-defined.Jan. 30 and Feb. 2. Photographs faint. Limb ill-defined. Feb. 3. Photograph very faint. Spots and Faoulic ill-deflncd.Group 1833, Jan. зо-Feb. ir. A large regular spot, a. Two very small spots, close together and measured as one, accompany it on Jan. 31. A number of small
spote are seen near a on Feb. г and the succeeding days, forming a fairly straight stream to the south of a, and for the most part preceding it. The group slowlydecreases in size from day to day, until on Feb. ю only a, now quite a small spot, remains.
Group 1834, Feb. 4. A small spot.Group 1835, Feb. 4-16. A very large regular spot, a, which slowly decreases in size after Feb. 8. On Feb. 8 and the succeeding days until Feb. 14 a number of small
»pots are seen close to a. a has divided into two portions by Feb. 14, but these are measured as one as they are very close to each other.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886.
Measures of Positions and Areas of Spots and Faculsa upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.
35"-48
I.
Feb. 5
36479
Feb. 6
37-239
I.
Feb. 7
38459
Feb. 8
«1я
Н,ЕР
H.JH
8Р,Н
Н,8Р
11ч
1tí
rtrо
о'«!
1833183318331833«1835«
183318331833«18331835«
1833183318331833«1836i835"
1837«i837'j1833183318331833«1836183518351835"183817.1838/;
§-S.9
P ч
*Э
IIII! 'Sn
0-2190-212
0-184
0-154
0-932
0-859
0-894
0-507
0-444
0-3750-358
0-777
0-893
0-6 1 6
0-5860-5850-5210-4020-6580-7830-821
0-9310-7860-8390-8120-8220-8000-7720-7260-2370-3760-4020-4220-4000-4440-976
CO
§W
|•Й
'"i.|
iä'и .43
СЧ
O
211-5205-9201-5199-1
97-698485-1
253-5244-0246-4245-7
97-396-3
250-6256-5248-6252-0
55-396-9109495-5
283-9296-3266-3266-9258-3255-5253-3256-3
4-698-791-398485-085-679-2
HELIOGUAPHIC
13
5g
о
1IO-2io8'91О7'4юб'4
34-243-84О-6
115-8ï ю'5юб-61О5'5
34-622-3
I I 3 - I1 I I - 5ï ю'5юб'5
5б'434'524-52О'4
126-4юб-8I I 7 - IM 44I I 5 - 5ИЗ'2
по'4юб'4
58-837'9зб-i35-036-5337
344-1
oî
1'иJ
о
-17-1-174-I6-Z
-47- 94-10-5+ Г5
— 14'о-17-2-47— 14'6- 9-8- 8-5
-17-0-I3-I-177-4'9+ 7-0- 9'5— 19'2
- 8-2
+ ю'4+ 15-9- 6-7- 6-4-134-,5-6-17-1-44+ 7-е- 94- 6-6- 9]5
- 4-0+ 8-9
SPOTS.
е ё•И Чн
<*.Ъо* аИ~Я-е1=8.•S50 •e1*§30
•3
0
оо
1675
(98)
ïо
и4
52
(68)
ооо96
I2O
035)
оо32
479ïо
7062
(104)
IlИ 'SJ 5o-iШч.
^1•M
-1frË SO
^
2334
FACUL^K.
s-tí_ *Г-
lã1-8S ^«ï
GreenwichCivilTimo.
аб.
•<, /'449
118476
(685)
20
468"7
449
(558)
874
8341
498
(641)
73
13u44046
33
4471615
16 18)
/—-.»5— '130
(1213)
2031;618
(821)
í 19 с94
58o(893)
47282
18 с27 С
)342 f
)
248(1064)
- У Ч У/~>s
Feb. g
40-150
I.
Feb. lo
41-151
I.
a
fe
gя
H,M
SP,H
H,KP
13í!>rt
fÜ
°1aœ
1837«1837618331833«!18361835183518351835«183518351838«.1838^
183718371837/11833«18361835183518351835«18351838183818381838
1833«183918361835
is.a
lá« gõ*"
]Иli9о2.S 'SО
0-8890-9410-9210-9420-858О'32О
0-1460-1590-159О-2О7
0-2450-265o-i680-2410-919
0-9460-8630-9840-9740-9670-9260-4480-051О-О22
О-О22
0-061O'OgO
0-056
0-038
0-042
O'oSl
0-848
0-8680-935
0-9120-7580-9810-6820-6290-266
i1I
•яш
1
•Ц§Н
Рч
о
289-8265-2206-3
258-425743i6'3109-1102-4
92-5105-2
98-2100-3
77'*8о'3774
286-7294'2
263-32034265-0256-6299-621 6'2
253'52О4'1
45-61074331-6345-8297б4'767-377-1
ю8-2
Z94'3303-0256-1263-8289-8262-9
HELIOORAPHIC
' Îgо
юб'ЗИ7'3114-1ii" '9юб'з
59-638-837-837-635-232731-637433-1
341-9
юб-192>9
И7'9I I 5 - I1 13"61Об-2
6о'739738'938-235732739-238-236-533'5
343-7339'3327-6
85-866-7
104' 567-7бо'939'9
»5
1i
о
+ 4-3- 6-7- 6-0-13-1-4'2+ 6-9- 9'3- 8-5- 7"о- 9-6- 8-4
- 44- 4'г+ 8-8
+ 134+ 17-0- 7-8- 8-0- 6-6-15-0+ 6-6- 9'1- 7-1- 7'9- 9-6- 8-2- 3'9- 47- 4'7- 47+ 15-2+ 77-194
+ i8'9+ 19-5-4'9- 9-2+ 6-9- 8-4
SPOTS.
Il•"'SCc5 Ч
g^
S}u so
•3
83646oo2
67
O
O
o0
(96)
oooo2
O
o0
83o0
0
oo
(85)
0
3oo
IIH-e*Э B0-2.
SlÏÎ*g SO•3
6633442416ii47
442
376
(637)
25n413n
S5
17409
10
n766
(550)
18IO
64
FÁCVLX.
0,
Oja ^So
"" 'SЙ |§-=••3
» 5 5
2OO(-
298«;342C
248(1243)
138
265 к45 ic-
103278194
(1560)
15062
296 r.
Tho Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulnunaccompanied by a Spot. The positions of Faoulm relative to the Spots with which they are associated are indicated by the letters n, t,p,f, o, donotimrrespectively north, south, preceding, following, concentric.
Tho Areas of Spots and Faoulm are expressed in millionthn of the Sun's visible Hemisphere.
Group 1836, Feb. 7-1 1. A single spot.Group 1837, Feb. 8-ю. Two very small spots, a- and 1>, on Fob. 8. Both have increased in size by Feb. 9. Tho tfroup consiste of three spots on Feb. 10, of which one
appears to be identical with ft, but the other two appear to be fresh outbursts.Group 1838, Feb. 8-ю. Two small spots, ч and b, on Feb. 8 and 9. They tend to separate from each other on Feb. 9. By Fob. ю they have broken up into a number of
very small faint spots, hardly distinguishable from the general mottling of the Sun's surface.Group 1839, Feb. ii. A small spot.
40 MEASURES OF POSITIONS AND ABBAS OP SPOTS AND FACULTE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued:
GreenwichCivil
Time.
1886.4I ( 1-I5I
I.
Feb. u
42-180
I.
Feb. 12
43-170
I.
Feb. 13
44-186
M.
i2
iя
H,BP
8P,KP
H,SP
BP,H
3?rJ
-gs§ô•S g.á'
1835«i8351835184018411841
1835«1835184018401840184018401840184118411841
i835a18351840184018401840184018401841
1835«1840
i.Э
1Mp W
11o
0-1980-1630-1310-0360-9100-919
0-9630-4220-3790-2720-2680-2570-2480-2260-2160-7920-8020-8160-972
0-9440-8630-8250-6190-5740-4900-4720-4480-448
04390-4250-6230-9180-900
0-9090-7740-679
i02
gZ
<H
Tc
•3
ЦЯн
О
255-12бо-8256-469498-699-6
272-9261-9404" 2
269*6
271-5277-027°4270-2276-3
96-599-699'994-1
202-6
2 8 I - I
269-02634265*2
2724268-1
26972734267-5271-3
97-06з494-1
2637263-3271-2
HELIOGBAPHIC
cî
'1яS
0
35-633-831 "922-6
318-5317-2
84-8
35'9ЗЗ'З2б-7
2б-5
25725'324-0
23'3
318-2317-2
294-2
6o-i56-0534Зб-2ЗЗ'о27-126-1
24'5
24-323'923"О
3I9-I296-4
50-2
35427-1
1'-S
â
0
- 9'5- 8-1- 8-4- 6-0— ю-6-11-4
+ 0-9- 9-6- 8-5- 6-7- 6-2
- 4-8- 6-5- 6-6- 54- 9'3-1I-7— 12 'О
— 5'6
- 9'3+ 6-0- 47- 94- 8-4- 4-8- 6-9- 6-2
- 4-6- 7'2
- 5-6- 97+ 2 I - I
- 6-7
- 8-6- 9'5- 4'3
SPOTS.
0 0<Н<Н
«<*тз§1
§1
Jlf
77ооооо
(8о)
83б0
о0
о0
оооо
(«9)
87о
IOI3о0
оо
(101)
52
5
s e«м «H
HIB0-1
i*U
ïîl•5
4035722
439
(536)
39°64
6ï4365
2342
(508)
4251370
615
I
383
(544)
33326
FAOUL-Ж.
o,g0 .
•g fSQ
S3
iï•4
)í 172£
(68o)
53
IO2C
194(349)
i65140210
2OO135
(850)
618690
GreemriohCivilTime.
1886.44d*l86
M.Feb. 14
45-250
I.
Feb. 15
46-186
I.
Feb. 1 6
47-251
M.
Feb. 17
48-181I.
Feb. 1 8
49-277
1.
Feb. 19
50*162
I.
шс
я
ВР,Н
H, M
ВР,М
H, M
H,SP
Н,ЕР
Н,ВР
11гЗ
•s§10
•stО«á
184018401840
18350184018401840
1835«184018401840
1840184018401842
1842
1842
184318431843
ã.9£a A«JJ«siизоf -gQ
0-6310-6270-621
0-9610-8310-8410-9250-9080-8590-8190-790
0-8920-9760-9460-9260-9100-923
0-9940-9890-9780-978
0-7720-915
0-8780-7940-870
0-934
0-8870-7960-2400-2600-264
i02
g
P«H
Tb•S§ ч
13h
o
269-7265-8268-1
276-8258-7242-9262-4263-0269-2267-6266-9
2777261-9267-8265-9
79-0
267-1264-6262-9104-6
284-9104-7
284-7106-0
79'5103-4
250-02бГ1
119-4
I21'4
I I 5 - 2
HÉLIO« ПАРНЮ
â
J
0
23-623422-9
43427-026-838-636-129-725-622-8
20-336-329-426-324-0
252-4
27-926-122-7
225-1
340-3224-8
336-6
224-6218-4207-5
328-7318-8
253-32 5 2 - 525Гб
1Ã
o
- 5'5- 8-0- 6'6
-f 4-6-13-2— 26-4- 9-6- 9'3
- 5'9
+ 3'6- 94- 4'4- 6-5- 7-1+ 74
- 3'7_ 6-4- 8-4-I5-7
+ 6-8-16-3
+ 9'3-17-1+ 5'5-15-0
— 2ГО
-114-137-147-13-3
SPOTS.
SS«H«a
"JrO
я-p £,
«il•Ч
Iо6
(64)
66ооо
(66)
53064
(63)
0юо4
L**T(/Ч'
4(4)
7
(7)
ооï
o s•H «M
«•в
o-âÍSS.
ölt•Ч
174
28
(4о8)
S"38
S12
(366)
2591330
47
(349)
456813'45,
(*ffj
im)47
(47)
32
(32)
i83
•9
FAOUL-Ж.
ftë5нС
|o
•sí4"
(687)
'54243
66,53
626//][ 233C
í(1375)
2l
> 10840
69
j
[ 54C)
ï бос(214)
153214/
(Зб7)
146229/
5833
(4бб)
19758
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faculaunaccompanied by a Spot. The positions of Faculœ relative to the Spots with which they are associated are indicated by the letters », *, p, f, a, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculœ are expressed in millionth» of the Sun's visible Hemisphere.
Feb. 15 and 16. Spots and Faculœ ill-defined. Feb. 19. Limb very faint. Faculœ ill-defined.Group 1840, Feb. 11-17. A very small spot on Feb. n. On Feb. 12 the group appears as a straggling stream of very small spotB. The preceding spot of the group on
Feb. 13 is a regular spot, which has diminished in size by Feb. 14. The rest of the group undergoes continual changes, but remains on the whole an irregularstraggling stream of spots.
Group 1841, Feb. 11-13. Two very small faint spots on Feb. n and 12. A third is seen close to the first two on Feb. 12. Only one spot remains on Feb. 13.Group 1842, Feb. 17-23. A small spot.Group 1843, Feb. 20-2$. A number of small spots first seen near the centre of the Sun's disk. When first seen on Feb. 20, most of the spots are arranged in a circle,
enclosing a considerable area. By Feb. 21 many of the spots have disappeared, and the group f orme a straight stream. The group diminishes in size on succeedingdays and no trace of it is seen on Feb. 24. On Feb. 25 a very small spot is seen very near the place of the group.
ON PHOTOGRAPHS TAKEN AT тнв ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1686. 41
Measures of Positions and Areas of Spots and Faculté upon the Sun's Disk — t:ontiniied.
GreenwichCivilTime.
1886.50d 'l62
I.
Feb. 20
51-112
I.
Feb. 2i
52-525
Feb. 22
53-157
I.
Feb. 23
54-429Feb. 24
55-200
I.
Feb. 25
56-428
я
H, SP
HP, M
H, SP
H, SP
M, SP
M, SP
H, KP
11'S§s*о
*l1
1 84з184318431842
18431843184318431842
'843184318431842
18431842
184318441844
1845-
я-S.g| .
^1Л ш
Dis
tanc
e:of
Su
n1
0-274О'ЗО!
0-2930-665
0-9350-9260-922O-I23
o - i i 80-1420-1520-5010-932
0-9200-376
0-3490-3000-250
0-9320-9360-926
0-8540-5060-186
0-963
0-8340-8760-9080-971
0-9340-9460-251
U*Ö
J
«б
T?n
f
î*о
i i8 '7119-61144108-2
262-2247*5270-719171767170-0161-61 13-2
99'3
299-5
2 5 I - 3248-0
244-4138-7
270-2285-0300-8291-3256-5172-1
98-5
260-0
95'S97-691-2
257-5279-7341-6
HisuooiiAPHic
í.о
251-4250-0249-82244
323'1
322-7
320-2254'6252-7251-6250-3
1837
295-3256-0254-0250-7224-7
295-02934287-5281-3256-6224-9
'344
256-4'37-8I33-6123-2
253-0252-71877
Lat
itud
e.
о
-44-154-13-8-'74
- 9-8-23'5— 2-1
— 14*0
-13-8
-'S''
-'5'3-17-6— I 1-2
+ 23-6
-13-6-14-2
-4-3-17-8
— 2'5
+ 1 1 - 3+ 25-0+ 14-0-13-0-17-8
— i o- 1
-12-3- 8-3- 9'9- 2-9
-14-2+ 6-7+ 6-6
SPOTS.
IIa'SSAЧCG
ill•5
о6о3
(IO)
52
О
S2
(Ч)
0
ооо
(о)
0
о(о)
(о)
ооо
(о)
I
IlНтз
о-Í-£•£
*ï*a g rtV°
15387
30(130)
17Ч
2
21
7
(6i)
10
1 125
8(54)
98
07)
(o)
31817
(38)
8
FACULTE.
|0
'•я"Кlá
J1
(255)8o9948
40(267)
127
(127)
5°88
1 6o31
(329)
1 6oОбо)
7 S"1 г Я с г> 2051,
3°3(663)
256
44
GreenwichCivüTime.
1886.56ll'428
Feb. 26
57472
Feb. 27
58-196
M.
Feb. 28
59-207
M.
fк
H, EP
EP, H
KP, H
SP,H
1h
!те§ci
li1 844«18441844
1844«1844
184618440184418441 847«184718471847^1848
18461846184618461 844«1844184418441844184418441847«1847184718470
1<jj
.9
£ .•3-f
1.
Dis
tanc
e :
of S
on'
0-6910-7260-7610-8620-9010-968
0*4840-504
0-8800-2790-323
0-3430-3690-9610-9700-9750-9820-9910-961
0-9600-8630-4980-4670-4510-4540-093O-IO50-IÓ20-1820-175O-2O50*2260-8780-9140-9170-922
ъsj«H
0>
t
Pos
itio
nA
xis.
о
95796497-0gi-6
102-2
747
96-4
954
252-3242-8
96-9
93794'3
104-4105-9104-7106-7
94-3677
2 5 1 - 5310-8255-5254-0252-7249-8I I 2 - I
I05-5
IOI-0
113-7102-5II 1-3ï ю-б
104-5103-5104-61 06-6
HELIOQBAPHIC
Lon
gitu
di
о
139-1
13б'3
1234i i 8 - iI I О1 1
140-3139-0
222-1
1747
I4PO
I39-8
138-2
84-9
827
81-5
79-377-390-0
221-8
'95'3176-3174-1I73-0172-8141-7140-9
I37-5137-0136-8
'35'5134-3
84-779-9
79-478-7
•S.1
о
— 9'2
- 9-6— lO'O
- 5-1-14-1+ 12-8
- 94- 8-9
— 19-0-Ч'З
— 8-1- 8-3-15-8-17-1-15-9-17-7
+ 19-0
-19-8+ 29-6-134-13-8-14-2-I5-5
- 8-8- 8-9-11-3
-114-II-6-16-2-'5-2-l6-2
-18-1
SPOTS.
II•oM!§t•g ^
7о0
(8)
0
0
(о)
о4оо
'Sоооо
09)
4ïï4оl0
оIоо
516о
'S
IlHT)
Siet
Й1
4647
(65)
22
3
US)
1732
84
121
59i i9280
(424)
8738562
5742
4545273
297
FACULTE.
íоIQ
ïî)> 102C
j210
34178
(ИЗО
(o)
122
I95C303«112
(732)
l82
21
)2б8<:
The Groups of Spot» are numbered in tho order of thoir appearance. When thoro i» no number in the third column it is to bo understood that there ig в Facralaunaccompanied by a Spot. The potations of Faoulnj relative to the SpotH with which they are associated ore indicated by tho letters n, *,p,f, c, denotingrespectively north, south, preceding, following, concontrio.
The Areas of Spots and Faculto are exprcenud in millionths of tho Sun's visible Hemisphere.
Fob. ii. Photograph faint. Limb ill-dollnod. • Fob. M. Faoulœ very faint.Fob. is. Photograph faint. Fob. 17. Photograph very faint. Spots ill-doflned.Group 1844, Fob. xs-Maruh 4. Two small spots on Fob. 15. On Fob. 16 and tho succeeding day« tho group consists of an irregularly shaped spot, я, followed by a short stream of very small
spots. All but о have disappeared by March ». Group 184$, Fob. 16. A small spot.Group 1846, Feb. 18-Maroh j. A small spot on Fob. 18. A short stream of very small spots on March ï, of which only one member remains by March ï.Group 1847, lob. i8-Maroh n. Two regular spot«, « and ft, on Feb. 18, with two smaller spots between them. Both « and b have increased very greatly in sire by March ï and at the same
time have entirely changed in appoumnuc. Two nrrmllcr spot» lio to the north of n and fc, but between thorn In longitude. By March ï the group ha* undergone another change,a has partly broken up, tho principal portion, «, being a largo regular spot, Ь has undergone little change, but between с and Ъ thoro IB a broad complicated stream of spots forming awide curve convex to the equator. Л has divided into two spots, ri and c, by March 4, The group gradually diminishes In sir.e on the succeeding days, the spots intermediate between<з and e dying out. d has disappeared by March 7, and by March 8 only a and e romain, e varies somewhat in its shape on tho following side as a number or the small spots followingit appear to coalesce moro or loss perfectly with It on March s and в.
Group 1848, Fob. iS-Maruh 7. A regular spot on Fab. 18 and March t. A bridge divides It into two nearly equal portions on March ï, and tho separation between the two parts tends toincrease upon tho succeeding days. Tho spot is always measured as one. It diminishes rapidly after March ï.
GBBBNWIOH OBSERVATIONS, 1Н8П. fi F
42 MEASURES OF POSITIONS AND AREAS OF SPOTS AND FACULTE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculea upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.59d-207
M.Mar. ï
60-454
Mar. 2
61-435
v1яSP, H
SP,EP
H,EP
1S11§CU
ío*tfc
1848
18461 844 a18491849«18470184718471847184718471847184.718471847 118471848
18461 844 cr1850«1850!!»1849184918491849«1847 c184718471847184718471 847 118481851«
is.aц »&§«и »g "glï.20Я
0-9330-899
0-7420-2090-1460-1660-6790-7070-7090-7240-7300741
0-7630-7670-7700-794
0-7930-7930-937
0-948
0-956
0-8760-423
0-3830-3640-193
0-1720-144
0-I250-504
0-552
0-5880-6o60-6240-639
0-6550-6400-975
§A
1•R
93
ͧ »!•<
0
93-062-9
257-9259-143-857-1
107-4105-6103-1103-2106-4105-2103-6106-5104-8108-5105-091-988-578-798-8
2587263-2320-8324-8306-8311-73114
112-4109-1108-0105-41 08 -6105-91 10-890-691-8
НЕ1ЛООПАРН1С
TJa
%
о
77-688-1
178-5142-31 24- 5122-3
87-885-385-083783482-480-380-179'7777
-77-67776 I 'О6o-656-6
179-0142-3131-4129-5126-1124-5123-4122-3
88-184-481-780- 179-177777-077'339'9
V
0
1
о
- 54+ 20-6
-i3'9- 94
— 2-1-I7-2-l6-2
-44— 14-6— 16-9-l6-2
-I5-0
-I7-3— 16-0-I9-I
-16-3- 6-0— I '2
+ 8-2— IO-6
-134- 9-5+ IO-2
+ IO-2
- 0-7
- 0-7
- 1-9
-I7-5
-16-5-16-5-15-1-17-3-15-7— 19-0- 6-0- 34'
SPOTS.
II<j-e
8 sW "~ 'sl«Hœ •
«îl•<
27( I I I )
О
I
80
21 '
10
оо70
4iо
20
2
17
(97)
0
оо2
4оо4
335300
7942О
е ё«нчн
H*
olB.«
«нЮ .
í||•3
120
(Ю53)
12
4
l i235126
5174524
IOI
89l i
271
3786
( IIOI)
17659
52
97
312761393°4484
6i«7472
127
FACUUE.
|0 .
•8?IPё-2
ITS
si•3
550*/165(1186)
39c
•ч
> Ó29C
599«21268
1920739)
'95/
I9OC259«
GreenwichCivilTime.
1886.
61435
Mar. з
62-473
Mar. 4
63-217
M.
к
iЯ
НЕ,Р
H, SP
Н,ЕР
1И
5-ва
g0
liИ
i852a
1 844«1850«18506184918491849«i847c18471847184718471847^1847018481851«1852«1853«
1850121850^1 8496i849c1849«1847«1847184718471847184718471847^1847618481851«1851
|a.3
è03
*P Ю
8 gSw.1*8Q
0-9880-8900-909
0-9550-5700-5310-506
0-3950-3670-3290-320
0-3330-3650-41 10-4300-4640-4870-4490-9000-9300-9830-968
0-6810-6410-5830-5520-4990-1970-1740-2390-1920-2250-2630-3420-3130-3510-2760-8040-819
iEC
в•И
,s1Д
IIPM
и
97-884-з98-5
257-2263-830143037286-4285-3282-6124-5I I 3 - I1 18-3i i6-iI 1 0-0
112-4»17-3
88-589-996-6937
югб
292-6294-1278-6280-9276-4150-7136-4148-2131-7140-212941324
126-485-588-088-6
НЕЫООПЛРНЮ
OJ
'S1
o
35455-05 I - 3
1774142-7130-9128-8125-8124-2122-3
87-685-284-181-079-077-176-476-939'534723-827-2
I33-2129-9128-8126-4123-3
87-986-686-185-285-181-578-278-076-477740-438-8
<£J
j
о
— 8-8+ 1-7-10-7
-44- 9-6•f 94+ 9"6- 0-4- 1-3- 2-8-17-4-44-16-8-17-2-15-1-16-8-19-4- 5'9— 3'1
— 8-8— 5-0-13-0
+ 9-6+ 94— 1-2— o-i— 3'1
-17-1-4-3— 18-9-44-17-1-16-6-20-3-17-0— 18-9- 5-8- 27— 3-0
SPOTS.
II•«l-a
Si5i.§ sa
•3
24
(125)
ооо30
348
0
5оо0
I I3
1832
32
(155)
40
817u46
о0
0
4448-
13421
О
IlИ Ч1-3 gOi
Si•gM ,
•3
194
(1337)
91 1
5852793
2698
973638
112
4344
108220
196
(1501)
10
746
4791
2822
2I
5866
3°80
82
37116
ю-
FACTOLjE.
P.
1 .
. MII
i1•3
850228486
(443)
99
55«79«
208C121
(562)
|
> I / I C
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spote with which they are associated are indicated by the letters n, e, p,ft o, denotingrespectively north, south, preceding, following, concentric. •
The Areas of Spots and Faculse are expressed in millionths of the Sun's visible Hemisphere.
Maroh 4. Photograph very faint. Spots and Faculse ill-defined.Group 1849, March 2-8. Two small spots on March 2. Of these the following spot, a, increases in size on the succeeding days, but remains fairly stable in position and
appearance. It undergoes a great increase in size between March 7 and 8. The preceding portion of the group has become a short stream of spate by March 3.These spote have coalesced to form two spote by March 4, and have again divided and coalesced in a different manner, principally to form two spots, í and o, byMarch 5. a has divided into two spots by March 7, but these have combined again by March 8.
Group 1850, March 3-6. Two very small faint spots, a and b. b has disappeared by March 6.Group 1851, Maroh 3-14. A regular spot, a ; one or two small spote are seen near it on Maroh 5, 6, and 8.Group 1852, March 3-15. A large regular spot, a. The group has become suddenly larger by Maroh 1 1, principally by the appearance of a stream of epote immediately
to the south of a. These later formed spots diminish in number and area on the succeeding days.Group 1853, March 4-16 A very large regular spot, a, followed by ft stream of email epote. The email epote undergo very frequent changée in area, appearance, end
arrangement ; a has thrown off a portion by March 9, but increases in size during the succeeding days. The small spots have all disappeared by March 14.
ON PHOTOGRAPHS TAKEN AT тнк ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAUKITIUS, IN тнк YEAR 188G. 43
Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.6з"-217
M.
Mar. 5
64-226
M.
Mar. 6
65-507
1яH, KP
H, EP
H,SP
114
11£
1
l!K
1852«1853«1853
1850«1849/,)184918496-1849«18476-1847184718471847^I8471847«18481 8 5 1 a185118511 8 5 2 a
'8531853«.18531853
184961849 с1849 G1 849 a1847 с1 847
1847018481851«1852«1853
i.s•S .
8 1Iм
! 'Sд
0-8470-9330-9660-964
0-8350-7320-8400-778о-7зб0-7300-6820-2090-1590-1890-156o-i8i0-2290-21 I
0-0500-6430-6590-6840-7020-8040-8320-8810-9140-837
0-9620-9410-9330-8980-8790-8650-4180-3850-2900-2550-3920-4660-602
ita§
I
IICM
О
95492-2
93-672'3
261-9266-0285-6
273-7276-2272-8216-0213-4198-1168-4167-5168-9160-9
62-684-885-387-394-288-390-791-990-9
104-0
261-6283-3272-6274-0272-8270-9245-4247-3224-0274-5
79-894-886-2
HELIOQBAPHIO
1
^о
35424-618-422-1
137-5
I27-8
I35.-3I 3 I - I127-6
I2Ô-8
123487-8
85784-078-678-277-876-378-040-839-637'S35-727-124-11 8-614-423-3
1384131-7132-1127-0124-8123-4
86-985-175-878-341-035726-8
13о
- 8-4- 4'7- 54+ H'9
— 10-7- 7'9+ 9-0- 0-9— 2"2
- 0-5
- 34— 16-9— 14-8-17-5— 16-0-17-4— 2O-I
-187
- S-9— 2-2
- 24- 3-5- 8--I- 2-Q
_ 3.7-15-6
— 1 0-0
+ 9'9- 0-3
+ 0-4— ГО
- 3'3-IÓ-6
-I5-3— ig-O
- 5-8- 27- 8-6- 3'5
SPOTS.
II<)-a
Й1BtL
•*!
29620
(245)
ï35о
28
12
30о0ооо
173
240о
35о
IO1
I Iо
(297)
21
. 455
28
230
130
to29о
II
310-2-
•H00
£ lo•4
' 2 1 4561140 '
(•**зй
12
169
2
309122
3'992
I I
3118n
u2
22O
585
13931
(2^22)
I 80
244
64
130
270
8ï об
7117I92
5
FACULTE.
A.
1
1|
§1•4
836-
[934C
85X'273)
> 17138
• 6440
239(1092)
162105
)> 1970
)
GreenwichCivilTime.
1886.65"-S07
Mar. 7
66-430
Mar. 8
67-448
Mar. 9
68-419
сe
я
H, SP
EP, SP
H, SP
H,EP
1
Д•3ort
|&
£
1853«185318531853
1849^184901 849 a184701 847 e185101185118511852«1853«1853'853185318531853'853
184701847«.1851«1852«1853«1853
1853
1847 c1 847 e1851171852«
iя
0 «
flli
«H J«
p
0-6430-6930-6950-7280-768
0-9210-9890-9680-9550-5870-452
0-2150-2420-2670-4680-5130-5130-5320-5540-5700-5720-961
0-7450-623O-IO20-040
0-2550-2990-2960-372
0-893
0-914
0-7730-870
0-7760-299
OM87
'i£§
U
3
fl
0
89488-991-892-090-6
20Г2
270-7271-6
268-6
240-766-774-274-696-487-885-891-689-892489-392-078-3
254-1248-3322-6119-9
82-579'389-690-375'5
297-2266-9254-9250-9284-5263-6
НКЫОСШЛГШС
f
à
0
23-619-8I9-4167
'34
1 19-1132-6126-5124-2
86-776-04i'339'537'935-923-520-720-419-217-616-616-4
339'2
86-175-541-435-923-320-92O-6
16-0336-9
85-876-086-276-042*036-0
a
í3о
— 5'i
- f 5- 6-5- 6-4- S1'
-11-3- 0-4
- 3-5-i 6-8-I9-3- 2-8- 37- З'З- 8-6- 54- 4-1
- 74- 5'5- 74+ 9ч
-i 6-6— 19-0— 2-6
- 84
- 5'1
- 37- 6-8- 6-8+ 9'5
+ 21-3- 7'o-16-6-19-3
- 8-3
SPOTS.
II
?•ё*-£
•5 "
IO4006о
(290)
13ЗбзбЗ2
I I
H0
0
27105
2
ОО
оо5
(•80
343
ю2367
ооо
037)
n69
26
IlIItt
ïii•5
573869
73J7
(2081)
15042634
85135
5
1966554022
94
Ч54
WSg
26850
u6186577
724472
(1385)
23343
118188
FACULTE.
o,
О
11a•Ч
31б/tówí-1 VtÃ/ ov
1 08
5290
89(726)
154(«54)
8o234
f 3290
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there ie a Faoulaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated are indicated by the letters и, ï, p, f, c, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hémisphère.
March 9. Faoulœ very faint.
6 F2
44 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULTE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.68d'4i9
Mar. lo
69-465
Mar. 1 1
70-207
I.
Mar. 12
isя
Н,ЕР
H,SP
Н,ЕР
•8»êÃvifC!
ï*fc
1853«
1853
1853
1853
1853
1853
1853
I847C184761851«185218521852«185218531853«18531853i853185318531853
1851«18521852«185218531853«185318531853
is.a
ô*
l?si
S °
0-0480-0970-0900-0910-1560-1540-1770-1850-797
0-8970-9540-8960-5160-4480-4240-415o;399
O-205
0-186O'l6l
0-1530-094
0-0740-054
0-9690-9560-8520-6580-6010-5640-5470-4830-3710-2800-2680-191
'a
ã•Я
.3
I
l-íS")b
o
45-646-966-089-376-286-795-880-471-1
264-6254-5251-2276-9261-6261-1264-9260-1274-5278-2289-8262-8280-0285-1295-33I5-6
253-9263-5273-7274-6264-0265-6262-0279-2274-1267-7276-4256-2
HELIOGRAPHIC
-
rë0
IЛ
о
23-2
21-2
2О'5
20-0
16-51б-з15-047
3354
75-685-075-742-138-036-536*0
34'927-223-121-42О-62О- 1
l6-6
I5-2
I3-6
78-4
75-0
59-542-4
38-6
36-0
34-8
29-923-2
17-816-912-3
1
"J
о
- 5'3- 34— 5'i— 7-1— 5 -о- 6-6- 8-1- 5'3+ 10-3
- 8-1— 16'9— 2O-O
— 2'7
— 10-2
— Ю'З
- 8-6— 10-6
- 5-8- 54- 3'5- 8-3- 5-6- 57- 54- 5-0
-17-4- 8-3- 0-7- 2-5— 9'3- 8-5— 10-4— 2'O
— 5"2- 7'5
— 5"2- 9-7
SPOTS.
«8-8
os 3g A
ЧЮ"o --í-
-ч"
88оооооо0
(14°)
8о
142
О
153о
78о0оооо
(120)
12
15294о
97оо2
(159)
II
*!O-i
Чlit•«3
544323717
3IO
6i i
(1242)
186249i27
8206
76-4
73-1469
IO
8(1323)
9347
171899
5943
2522
(IOS3)
FACUL-Ж.
ft
J
ti?vQ
•12-3-«4
97(74o)
308)f 455e
(763)
473324
(928)
GreenwichCivilTime.
1886.
7Id-569
Mar. 1 3
72-219
I.
Mar. 1 4
73-229
M.
Mar. 15
74-327
M.
Mar. 1 6
75440
Mar. 17
ée
я
EP,8P
EP, H
SP, H
EP, M
H, EP
1Ьч
f•oi
tO
fc
1851018521852«18521853«185318531853
1851«18521852«18521853«
185218521218530
1853«18541854185418541854
1854«18541854&
i.g2a j
*3
»H to
.ibQ
0-9130-8590-8200-7860-7680-6350-6320-6o80-5860-881
0-9260-8980-8670-8510-7410-879
0-9070-9750-9600-8800-9270-926
0-9370-9700-4310-4230-4150-372
0-3340-860
0-9780-6670-6240-613
i5is
•fij*I§ «14&
0
264-3271-8263-5264-8263-1270-72744265-5270-1
79-7
270-5262-8264-2262-5269-8
70-6
286-5261-1262-9268-0
77'2103-0
254*5267-4261-9259-8262-0258-8262-4104-1
263-8264-4263-8261-8
HELIOGBAPHIC
!*о
50-142739-235;823-122"6
z i-319-6
283-4
42-839-535-633-9
276-9
24-139-736-023-5
2557253-I
17-8234
332-8
332-3331-8329-0326-8
247-5
in334-63314
Î3о
— 8-2— 2-2
- 9'5- 8-6- 9;9
- 2-8- 8-5- 5-8+ 5'5
- 2-3— 9-6- 8-6— IO-I
- 5-0
+ 11-7— 10-3- 8-8— 5-1+ 9'°-147
-17-0- 4'3- 9'9-10-7- 9-8-10-7
-157
- 7/5
- 9'5— IO-6
SPOTS.
II2!Ij111«4
53
280
92о0
о
(128)
37
380
49
(197)
о21
log
(«30)
ИЗ30оо0
(11б)
9о2
(И)
u ы•s -aSI0-2-w
-ïî<
43I I
18083
5853110
3
(946)
4415
18148
592
(880)
12170632
(814)
603
9ïï5ï
(620)
524
12
(68)
PAOULA
ft
es.a -R<3 cego
JSë-8:i« i•5
135159e
)[ 324e
)
44(662)
6580)V io8c
)2846*
97(II47)
103
55IC7360151202
(1743)
351667/
47(1065)
421
(421)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculœ relative to the Spots with which they are associated are indicated by the letters n, e, p, f, a, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spote and Faculte are expressed in millionths of the Sun's visible Hemisphere.
Group 1854, March 16-20. A stream of very small spots on March 16. The members of the group have coalesced by March 17 to form three spots, of which thefirst and last, a and b, are the largest. Only a, and Ъ remain by March 18. a has broken up into several portions by March 20, but is still measured as one spot.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, ш THE YEAR 1886. 45
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GroenwiohCivilTime.
1886.76d'202
M.
Mar. 1 8
77-465
Mar. 19
78-159
I.
Mar. 20
79-196
M.
.Ii
H,EP
H,EP
H
EP, SP
1
IЛ13ifÜ
^18540185461855185518560
1854018546185701857618551856«
185401854618570185761858185818581858185518560185618561856
1858185818581858185818551855
1.9JSgÖjg
JHjjl'a
0-7940-7480-9380-9500-9930-9790-9590-894
0-9350-9070-7290-69607930-921
0-9790-9640-8400-8050-2640-2550-2890-2970-7310-8550-8810-8940-9160-955
0-1710-1600-1470-1760-1590-5060-551
iи
-aI
.8.3
1
о
264-02Ó2'3
IOI-8
98-984-1
i73"ii6i-8Ю5'6
263-7262-4
2594258-3100-3
8i-6
262-4262-2259-8258-6
50-052*955-854-099'679-680-0Sri80-4
102-5
3347342-5353-23594
4-0103-1102-6
НКЫООПЛРНЮ
u!
3о
3354331*22I2-O
210-0
200-2
ZZ9'8
222-9
218-5
3357331-6313-0310-3213*2200-1
335-6332-0
344310-8245*2245-1243-0242-9209*21994196-4194-6191-8183-1
247-3245-8244-1243-2242-5212-9209-8
•ë|10
- 9-0— 10-4-13-5-10-7+ 5-0-81-5-69-7-17-1
- 8-4- 9'9-12-6
-13-2-12-4
+ 4*9
- 8-8- 94-12-4-134+ 2-9+ 2-0
+ 2-5+ з-з-11-8+ 5-1+ 54+ 4'7+ 5'9-14-0
+ 2-0
+ 1-9+ 1-5+ 3-2+• 2-2
-12-6
-12-7
SPOTS.
Ilaiш .а3s.•8ÏÇJ ia
n4оо
35
(50)
8оо0
о39
(47)
21
О
О
0
о2
0
0
2
зб40
6
ffî67оï
IOI0
IIpio S,
Í!.
-1?Jla
9448
54
268
(419)
4515Ч22
9
275(38o)
13140
752
29
6Чi i
276i61522
(574)
«S17
i12
SIIO
6
FACULTE.
P.
ü>jjÔ
8á•&IJ~
7icбос
)f Ч7С
4610799
(530)
2686'
и 26-
I 3 I C477/
(958)
3 4е
59е
)> 5960
)Ю9
(1078)
GreenwichCivilTimo.
1886.79rt-i96
M.
Mar. 2i
80-205
M.
Mar. 22
81-141
I.
Mar. 23
82-466
Mar. 24
E*
1JEP,SP
H,SP
M,SP
H,SP
1
i1Яtf
O
•st1*1856018561856
185801858185818581858185518560185661856
1858018581858185818560185661856185901859
185801856018566185901859185918596
i.aË
»s|«
Úl'a
0-7100-7350-7950-907
0-9860-3520-2930-2910-2690-2650-3370-5310-5630-6320-8380-9-4
0-5380-5240-4620-4360-3640-3950-4620-9850-9900-8930-937
0-8850-7630-2080-2280-8900-8980-9150-9290-898
i&
Ja
•â
1-3Г
Q
75-5
75'577-0
1 04- 5
258-1294-2301-4306-1304-2306-4107768-867-171-6
105-872-9
284-1279-6287-0290-3
56-255463-289-093*670-098-8
288-8277-3
1-87-1
86-891*788-489-674-6
НЕЫООВАРШС
1
Áо
199-6197-6192*1177-3
3 I I - 3248-5
2434242*6242-12107
2OO-I
198'5192-9172-6
155*6
24872484243*5241-5199-8198-4193-0137*61354157-6147*2
259-1249*о199*6198-4137*5136-0134*1131*9138-5
1
eï
1
о
+ S'2
+ 5-8+ 6-0
— i6-o
-12-9+ 17+ 2-1
+ 3-1+ 1-9+ 2-3-12-3+ 5*i+ 6-7+ 6-0-17-0+ 4*9
+ 17— го+ 1-6+ 2-4+ 5*1+ 6-5+ 57— о'з- 4-6+ 44-ю-?
+ 13-1+ n+ 5*«+ 6-3- о-з- 4*6- 1*3— 2*2
+ ю-б
SPOTS.
•8 «8
Рн 3М~
в*чн00
«1frISP
3393
(70)
ч0
оï9о
4115
ï
(8i)
21
О
0
о64
22
2
0
о
(log)
639u22
0
О
10
(94)
IIhi 9öl
et-*3|ia
254Ч12
(402)
676ï9
Ч2
236IOI
17
(454)
862
Ч
7215
8915
16637
(632)
42242
83171
3281
221
(872)
FACDL^ä.
Pi
es•S?и||í"
j\ SoieJ
IOO
(401)
136
бз133
(332)
"1J
160131
(483)
120
7 6с
1 7 СИГf 75ОС
i i8(1070)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faaulaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated, are indicated by the letters я, t, p, f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculto are oxpresxod in millionths of the Sun's visible Hemisphere.
March 23. Limb of Sun faint. Faoultu ill-defined.Group 1855, March 18-33. Two very email faint spots on March 18. Only one spot is seen on March 19, ao, and зз, but on March 21 the group consists of six very
small spots arranged in two clusters. The spots seen on March 19 and 20 do not seem to be the same.Group 1856, March 18-30. A large regular spot, a, followed on March 20 and the succeeding days by a short stream of small spote. A second regular spot, b, has
appeared close to a by March 23 ; Ъ has divided into two portions by March 26, but is still measured as one spot. It has entirely broken up by March 38, and onlya remains by March 29 ; a diminishes in size after March 20, but slightly recovers iteelf on March 24, diminishing again on succeeding days.
Group 1857, March 19-20. Two small spots, a and b.Group 1858, March 20-25. An irregular cluster of very small spots on March to. The group develops on the succeeding days, and has become a straight stream of spots
by March 22, the first spot, a, being the largest ; only a remains by March 34.Group 1859, March 23-April 4. Two large regular spots, a and i, with several small spots between them. Only a and b are seen after March 30.
46 MKASUBES OF POSITIONS AND ABBAS OF SPOTS AND FACUL^S UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.83d'S94
Mar. 25
84-426
Mar. 26»
85-116
I.-
Mar. 27
Éa»
H,EP
H,BP
H, H
t-í
J"gÍAi
O
'S g.o»Й
1858«1856«185661859«18591859185918596
1856»1856618561859«18591859185918596186018601860
1856«185661859«18591859185961860186018601860
$.3
JIsId§1S02
1*8Q
0-9770-9000-3250-3260-74007520-7690-7820-8010-914
0-9470-4770-4770-446O'6O2
0-6160-6340-6630-6760-8680-8750-8820-903
0-986O'OOZ
0-6040-4660-5070-5040-5470-7290-7680-8030-8290-9440-9650-984
iI"HS
3
.s. s
f£
o
2854273-5307-9313-6
84-189-785-486-686-8
105-1
273-6293-5297-9296*68r889-183-983-285-2
104-0104-71 06- 1
73-3
272-82877291-0
78-372-981-682-9
io6'i105-5105-8io6'i
84-287-9
109-2
HELIOOKAPHIC
4• t .о3
о
2ÓO'5248-92ОО-О
198-9138-0136-5135-3I34'1
132-3118-5
244-9200-1
I99-2
I97-7137-8
136-2
I35-3I33-2I32-O
II3'6
II2'7
I I t ' 9
I 1.2-3
245-0
2OO-I
199-6
I38-I
136-2-
I35>3
I32-3I lS '5
114-9
M I ' S108-9
95-290-783-9
oîT31!о
+ 134+ o-i+ 4-9+ 6-3- 0-3- 4-3- 0-9- 1-6- 1-6-16*6
+ 1*2
+ 4-9+ 6-8+ 5-3- o'5-- 4'7- 1-4- 0-6- 1-7-15-4— 16-1— 17-3+ 11-9
+ 1-6+ 5'1+ 7-0- 0-64* 27'- 1-6-V8-16-3-l6-2
-167
-I7-I
+ 3-2
+ 0-3
— 20-O
SPOTS.
II<j-o«J,jsj-g
m
•gg i n
•<
• 3276
21
О
50
38
(l 00)
29u0
17_ о
оо
24
0
оо
(81)
3810
24••> о
2
38о964
ОзО
IIHTJ
â!te 2
-1*és«
3°212
82
172
IO
1927
213
(765)
204874
1746
12
6283
H
53
(798)
20557
169ii
5235
15174716
(777)
FACULTE.
rCS
•s?lá-ié-a-
120
250/
• 6i9c
185(1174)
'59
I54C
81(394)
156
]> 215«
9847
316(832)
l GreenwichCivilTime.
1886.86<--l88
M.
Mar. 28
87-421
Mar. 29
88-232
I.
Mar. 30
é2
1
H,SP
8P,BP
H, H
1
Jt!avi
ío•sidlfr
18561856«18561859»1859185961860i86oa1860186061860
1856«1859«185961860«1860186061861
1856«1859«1859185961860«186018606186118611862
!.gJа лôj
1«Ч* „«и
|J
.ï 'so
0-9590-9140-8710-6860-7780-7720-7540-2440-279O'32Ö
0-548
0-582
0-605
0-634
0-680
0-922
0-894
0-938
0-915
'O-I26
0-093
0-327
0-370
0-420
0-972
0-957
0-976
0-274
0-225
0-1860-1930-2430-2880-9160-966.0-923
1
•H
•ä
§.a
rO
275-1278-2258-5281-4285-1282-3284-265-1
72-775-6
109-5109-5108-9108-9109-061-8
IOI -8109-4
279-23264
17-0I22 - I
118-1117-0100-587-4
277-2290-7291-2296-3153-0139-4131-999-6
101-496-7
HKLIOGEAPHIO
oî
!яо
2237
211 '9
i93'i199-9199-9198-0138-2135-5132-6n'8'5116-1114-4I 12-2
1о8-6
89-3
87-0
80-5
I99-6
138-6
I33-0II7-9
114-8
I I I 7
57-361-9
2OO-2
1387
136-0
I33-5118-7
114-4
i iro57-048-056-1
QJПЭ
S••§J
0
+ 3'°+ 47— 'З'З+ 2'9
+ 74
+ 6-2
— о- 5- 1-6— 17-i6-i-16-6-16-6-17-0-17-7+ 22-8
— 13-5— 2О'4
+ 5-6- о-б
-16-3-16-2-17-1-п-в+ 0-5
+ 5'5- 0-8— 1-7- 17-16-3-17-1-174-11-4-127- 87
SPOTS.
Il<jro
Й SPQ >"'
"Ч frJ°á
3з°о
23О
i83
16о
3i2
(126)
27
32
О
I I0
(101)
28
2О
О
18386
21
75о
(43)
Il»•eH! goiИ*.
•А
jlp
37I78
6165
2
18116
'З1
4138
H
(872)
1761241 20252
8239
27
(94б)
172153
6114285
12
221
30
1718
(1028)
FACULTE.
л
о•Я -Rláli•о
J-2643
10765
í '5 8сí
73176390
(1038)
5S9C
2320120
(9»)
584«/
]i 8 юс)('394)
The Group« of Spote are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters и, к, 2', f, >', denotingrespectively north, south, preceding, following, concentric.
The Areas of Spote and Facnlœ are expressed in millionths of the Sun's visible Hemisphere.
Group 1860, March 26-April 5. Three small spot« on March 26. The group rapidly increases in size on the succeeding days, and two larite upots, a and b, have formedby March 28. These, but especially a, increase in size on the succeeding days ; Ъ hoe broken up into a great number of small HpotH, which are Htill measured asone, on March 31 and April ï, but has closed up again to form one large spot by April 2. A large portion of Ъ has become partly separated from it by April 4, andhas wholly disappeared by April 5, thus causing an apparent change in the position of the spot.
Group 1861, March 2g-April 9. A small spot on March 29. Other spots appear following it on the succeeding days, and the group consists on April ï and thesucceeding days of a number of epote, mostly small, following one another in a fairly straight stream. The group changes its appearance from day to day.
Group 1862, March зо-April ï. Two very email spots on March 30. One small spot on March 31 and April ï.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 47
Measures of Positions and Areas of Spots and Faculee upon the Sun's Disk — continued.
GreenwichCivilTimo.
1886.89*'4i8
Mar. 31
90-386
Apr. ï
91-432
i1*
H, SP
EP,SP
H,EP
1h
1"a9
tCS
•sio-áf
1859«.18596i86oa18601 86061861186118621863«1864«
1859»18596iSooa1860186061861186118611861186118621863«1864«
1859(118596i86oa1860186061865186518611861186118611863«
is.S
13 j
1I?e gSMIt!
0-5160-4430-2600-2320-2030-7690-8170-7710-9400-9920-983
0-6910-6310-4400-3920-3380-6430-6570-68307250*6500-8450-9400-9530-942
0-8440-8000-6330-5820-5180-2780-2780-3980-4640-4880-5140-693
iM1
•H
•ât
'•§ 'и's<]dn
o
279-3279-0227-0219-6
193-499-299-996-399-093-8
106-3
275-7274-5244-8240-2232-5100-9102-4100-7101-3101-4
96-199-092-972-4
104-7
2734272-3251-6248-7244-8324-1ЗЗб-i104-0102-2
I03-3IO2"5
99-3
HKLIOOUAPHIC
vта
'uо*
о
138-9134-2ii9'8II7-211Г2
57'953'357-737--8
277
138;9
120-0
1 16'4111-9
57-555'754'552-549-054'937-6
2542б'О
244
139-0134-7120'41 16'3111-3
91-288-35875445Z"951-137-8
S!
о
- 0-8
- 1'9-i6-5-167-17-8-11-3-11-9
-107- 4-6-17-2
- 0-8— 2'2
-1б-б
-17-2— 18-0-117-12-9
-II-9-12-4
-127
— 8'8— I ГО
- 4'9+ 14'б— l6'0
- 0-6— 2 'О-1б-б
-17-5-18-3+ 6-7+ 8-3-II-4-11-3— 12-0
-II-9-1I-I
SPOTB.
IIЗъ
.«£%1чч03
•Я <J>
u s oч)
2О
1547-
о1 1о0
ооо
(93)
i87
544
Ч4о4оооо
65
('70
17Ч58о
2О
оо6оооо
IlH -eо!Efc
•9 jj<S «O
•«3
161103289
16182
74
19217
(1039)
16164
3454i
18093
512
24
96
H248
(1202)
94ni521
8o248
55
47478
13
FACULJU.
|1 .Л to1(5«1§5-
•9
} 366/
}f 451C
243(1060)
249»?377C248465
(1339)
GroenwiohCivilTime.
1886.91<Ь432
Apr. 2
92-567
Apr. з
93-102
I.
!*сMaiя
H,EP
ЭР,ЕР
H,EP
1M
Д'S9л
•g 'sci 00
и
186з1 8 640
1859«1859^i860«186018606186518651865186118611861186118611861186318630.18631864«18641864
1859«185961860i86on18601860186061865«186518651861186118611863«
1S.Se"g .31
•6.«8 §S«Jts
0-6960-8300-896
0-9520-9240-8020-7640-6980-4870-4680-4420-1620-1870-2080 221
0-242
0-286
0-472
0483
0-506
0-654
0-655
0-670
0-980
0-986
0-967
0-873
0-872
0-837
0-812
07/6
0-587
0-548
0-540
0-I3I
0-179
0-37I
iЭВ
g
«H
v
ï•á -á•g-3A
o
IO2-2
92-D
I IO-2
27I -2
270-0
2S3-9252-2
249-0
296-1
298-9302-3
I24-I
Il6'2
'23-31I3-9I I 2 - 8113-2
I04-7IQI '398-690-696'2
94'3
283-6270-3
269-4258-3
254-8
253-325Г8250-5
291-4
292*1295-6
«75'3140-3
122-6
105-9
HELIOOHAPHIC
vs
•'S,0зо
37'725-6
138-6
I34-II2O-I
I l6 '2I I O' I
92-79ГО
88-858-956-956-554'953-651-2
38-938-036-325-825-7
24-5
136-3139-8
134-8120-9120-7116-6
113-911O-2
93'0
90-3894
59-3
54-850-9384
•83•8bJ
о
-13-1
- 5;з
- 0-8- *4-1б7-17-6-i9-i+ 6-7+ 7'3+ 7-8-п'4— 1ГО
-127-II-3-II-6
-12-5-12-5— 1ГО- 9-8
- 8-8- 7-6
+ 12-0
- 0-8— 2'2
-13'3-1б-з-174-i8'4— 19*0+ 7Éi+ 6-6+ 8-1-11-4— 12-0-1Гб
-II-6
SPOTS.
II«ÍH3
PQ-— •
2t«i«e so
•ч
о40
(156)
IO
12
78
0
21
0
Оо40
го
IO
7ооо
5*о0(196)
H35о
109о0
1750о7876
IIЫпз
£1К
•S g1
S 5Q
•
8256
(Н°7)
i6o53246
230646
58357
54581675
269i l
3(1569)
103238
8538
21
f184
2
Ч60
91
3934
FACULA;.
1• сзл "К
^ ь0«
""•вS-S-
' •*)
310/99
(418)
| 405С
Збос
(7б5)
i46
723С
2вОС
1Ö7C
The Groups of Spots ore numbered in the order of their appearance. When there is no number in tho third column it is to bo understood that there is a Faonlaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated are indicated by the letters «, *, p, /, c, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hemisphere.
March 31. Faouleo ill-deflned.Group 1863, March 3i-April 7. A small spot, a, with one or two companions on April ï, 3, and 4. The цтоир has changed its appearance by April 5, when it constate
of several small spots in a short stream. Only one very small spot remains by April 6.Group 1864, March 3i-April 12, A large regular spot, a, with several email companions from April 3 to April 7.Group 1865, April 3-7. Two small spots on April г. Tho group has increased in size by April 4, and then forms a short regular stream of small spots of which a, the
preceding spot, is the largest, a alone remains on April 6.
48 MEASURES OF POSITIONS AND AREAS OP SPOTS AND FACUL.Œ UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
jrreenwiohCivilTime.
1886.93d'I02
I.
Apr. 4
94-446
Apr. 5
95419
dsiЯ
H,BP
ЕР,8Р
SP,EP
11«
Í•а9
fê*t6&ъ
18631864«18641864
i86oai86o&18650186518611861186118611861186118611861186118611861186318631864«1864
186501861186118611861186118631864018641864
i£
eg jД аО-Ч
lág-3Iм
J "8Q
0-3810-5570-5570-58607510-9150-986
0-9770-9090-81107660-3320-3110-3140-2930-2900-2760-2310-2300-2330-193O-2OO
O-IO2
O-II2
0-267
0-317
0-918
0-984
0-920
0-5370-512
0-481
0-446
0-441
0-1600-047OMl6
0-113
iSt
1«H
•a10 я
'S1^Oi
o
108-990-497-094-596-9
107-996-6
254-8252-3284-32847253-3252-6248-2257-8251-4246-1245-7238-0232-9240-0229-9150-81374
88-285-197-5
251-8281-4258-4258-1257-2257-7254-0
238-577-869-983-8
HELIOOBAPHIO
f
g>J
о
38-125'825-823710-8
353-0338-9
I2O-6
1077
goro6о'759459'258758-156-854'2534
51750-939"°37'526-4
334'9
94' 5
59757-655'354'737-12б-5
22'9
227
Á
â•i
а
-12-8
- 54— 9'1
- 77- 9'3-i 8-9- 7-6
— IÓ"2
-i 8-6+ 7-8+ 7-1-11-3-11-3-12-7- 9'5-11-3-12-4-11-5-13-1-14-1-117-I3-5-11-3— 10-9- 5'5- 4'3- 9'3
-18-9+ 8-0-ï 1-4
-11-5— 10-9-12-5-107- 5'5- 3'9- 54
SPOTS.
II<jtJ
«•=•Я«
•e"U«1-sso
461
оо
(273)
30оо0
40
ооо52
О
О
2
0
О
0
58о
(101)
ооо3
Hоо
59оо
II»•ë0-5-W
*&•g £•
fi vP<1
12
284
2
2
O-Sej)far!}^43»
22
'46
28
6
420
54942
63
34132
6260
4
(955)
188
ii12870174
26032
FACUL-Ж.
3,
0
•Ч'Йláк S.8 -S
ъл S8-2-<(
1 208i77
(1594)
J 7 4 i c
95C
89(925)
522I37C
GreenwichOivüTime.
1886.95d4I9
Apr. 6
96-286
I.
Apr. 7
97-544
Apr. 8
98-417
Apr. 9
igi»
SP,EP
H, SP
SP,BP
BP,SP
1â|TaЯ
feo'S S.ЛОЗ
fc
1864
1865«186118611861186118611861186118631864»186418661866
18611861186118611864«18661866
186118611861186118640,
iJ»
.gs1«S B
P M*И л
8 "g9«5
1°
0-1450-8210-883
0-9430-970
0-8990-9840-6630-6440-6230-6190-6000-5760-575
0-3450-1630-0890-3910-372
0-9630-9080-8620*8090-80707750-4370-5270-517
0-9120-8940-8860-8790-617
iœ1
•Я
•a1a .
!•§i-3h
o
69-999-0
101-387-4
251-1279-4260-0256-7257-1259-3256-4258-1255-1251-7272-1271-1344-0344-0
274-9260-8259-0260-9259-2268-8309-9311-7
2597258-7257-2259-1268-2
HELIOGBAPHIC
о!тза
'I1Á
0
2ГЗ
333-7326-8
3I8-0
3'3'S
82-О
96-2
59-2
57-656-055-954'352752437-227-122-8
24"!
23-8
76-4
6576 ГО
55-355'1
52-0
27'О
25724'5
55'853452-6S I ' S
4&3и
о
- 3-2
— 1O-9
-IÓ-6
-12-7
+ 14
— 19-6+ 8-1— in-13-1-12-7— 13-0-Ц-8-I3'5-11-9- 5-6- 5'9+ 16-0+ Ч'9
-21-9
— iro-12-4— 10-9— 12-1
- 5-9+ 14-3
-1 1-9-12-7-14-1-12-4- 5-8
SPOTS.
е ё•S «H„J-O
Р5 aP3-2-
нД .д-flÇS Sp
•Ч
О
(76)
о9о2
22
0
34о
6о0
0
о(юо)
0
70
0
58о
(66)
12
О
О
о59
(70
sê•H «H
HPOJ 90-2-д^
^nй"§ frS w fi<
5
(526)
89i
2
26
98
6
47334
256745
(587)
38561526
2682
9(44)
6o79
25267
(368)
FAOUL-яэ.
ía .л g*î«в-iül»â<
4738
1 66119
(1029)
249i88c
(437)
278204
(925)
1/ 6o i c
J(6o i)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to he understood that thoro is a Faoulaunaccompanied by a Spot. The positions of Faculas relative to the Spots with which they are associated are indicated by the letters я, *, ji,f, a, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculte are expressed in millionth« of the Sun's visible Hemisphere.
Group 1866, April 7-8. Two very small spoto on April 7. Three very small spots, two of which are measured together on April 8.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN тнв YEAR 188(i.
Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk — continued.
GreenwichCivil
Time.
1886.
99rt479
Apr. ID
100-627
Apr. 1 1
101-437Apr. 12
102-456
Apr. 13
103-095I.
Apr. 14
104-557
Apr. 1 5
105-389
ei
Я
BP, SP
HP, SP
M, SP
HP, SP
M, HP
HP, M
11A1íõê0a*к
186401 86718671867
186401867186718671867
18640
1868186818690
is.5
g gтЗ
lásîIм
J 'Sя
0-9220-8470-8640-7920-6850-6970-729
о-доб0-9250-8660-92404830-5340-5140-559
0-979
0-9800-9600-926
0-8920-4180-4460-9280-944
0-9430-922
"g1
1«И
,2
I§ «5
h
О
203-4
252-5292-9267-5117-6118-3120-8
252-1290-1267-3266-5130-8135*2128-4130-0
265-4
258-2266-4248-5
261-198-599-o82-772-2
270-8284-7
НЕ1ЛООПАРНЮ
i'g>s
O
43-133-528-0
294-5293-7291-6
25-624-820-428-0
296-9295'3294-3291-9
28-1
iS'5JO-2
4'5
332-0244-0242-3201-4200-4
328-0322-7
«
1лU
- 8-4-17-9+ 16-5- S'S-22-9-237-26-1
-i 8-7+ 16-1- 5'3- S'5-237-27-5-23-8-26-1
- 57
-12-7- 5'i— 22-0
— IO'4
- 8-5- 8-8+ 47+ I4'9
— ri+ 11-3
SPOTS.
II«1
'gl•g00^«li
•ч
6oooo
(6o)
480o0o
(48)15
(o)
(o)
0o
26(26)
II310-2-
E*00
'S x.
•5
279667
(298)
25335
12
6
(279)
176(176)
(o)
(o)
44
141
(H9)
FACULTE.
1<ä•g "éláII•e§1,•9
639"3386
Ч9С
(1007)
298i об121
275С
(8оо)
2бо/(1б9)
225Ю740
(372)
(о)
38
478«1OQ
(625)
32
38
GreenwichCivil
Time.
1886.
Ю5а>з89
Apr. 1 6
106-102
L
Apr. 17
107-103I.
Apr. 1 8
108-391
Apr. 19
109-578
Apr. 20
110-159
I.
1iя
EP, M
SP, H
SP, H
BP, SP
SP, BP
BP, H
1131f3
*ífc
1870187018681 8690
18701870187018690
18690
1 86901871018720
18690187101871187318720187218740
18690187101872018721872
is.aè
ífl
Jl
8 'gJ«Jhp
0-3290-3130-2340-8390-872
0-9070-4420-4150-4000-7440-929
0-574
0-3240-9480-9850-963
0-9050-1560-8220-8440-9750-8960-9160-9910-898
0-9520-208074110-8290-8510-852
g1
«jsДД
Ï-UCM
o
332-53397105-0
81-469-8
260-4311-7314-9318-9
79-2105-4
747
60-578-89°7
102-3
287-21-9
75-277-878-489-188-6
107-199-9
285-4320-4
72-688-086-988-8
HKUOGBAPHIC
1
1>з0
266-4263-8244-3201-4199-9
313-5267-7265-5263-62OI-2I79-5
20Г2
2ОГ4147-8
I37-9142-9
264-62ОГ9148-8146-1126-4I38-8136-1118-9138-1
264-7202-1148-9138-813б%5136-3
•S1>s
a
+ 11-6
+ II-7— 8-8+ 4-2+ 47
— 10-9+ 124
+ n"94-12-4+ 44-16-3
+ 44
+ 4-3+ 8-9- 1-6— 13-2
-I3'3+ 4-0+ 9"2+ 7'5+ IO-I
- "S- 0-8-17-6— i i - i
+ 13-0+ 4-3+ 9'3— n+ o-i- 1-6
SPOTS.
II
«1pq ^
*И•нШ .
ill•í
2
2О
17
(21)
0о3
27
(30)
i8
(18)
IO6
12
(28)
12
l6
0
O
24O67
(49)
171728
7o
IlSiöS.Et.•и" •
jlS•3
3H4
'34
(ISS)
ï198
121
(49)
136
(136)
112
52I65
(329)
95774
2518265
463
(911)
FACUL-Ж.
O.
SC5
•§">;làilli<
293/57
(420)
105
W68
(352)
(o)
241/3 5 8''43
(712)
> 5 S
1 1«Tï 237(-
43^)1 2036
314069( I I 2 I )
ИЗ108
91 i-jcn i j )
21 ! ' I Ябг
s. *1
The Groups of Spots are numbered in tho order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faaulœ relative to the Spots with whioh they are associated are indicated by the letters n, s, j>, f, <•, denotingreupeotively north, south, preceding, following, concentric.
The Areas of Spots and Faculto are expressed in millionths of the Sun's visible Hemisphere.
April 14. "Photograph faint. Limb of Sun very faint. No spots or Faoulro visible. April 17 and 18. Limb of Run faint.Group 1867, April lo-ii. A short stream of very small spot«. Group 1868, April 15-16. Two very small spot« on April 15 ; one of whioh has disappeared bv April 16.Group 1869, April 15-16. A largo rouular spot, a, which gradually diminishes in uizo from day to day. A small companion Is »eon at some distance on April 14.Group 1870, April 16-17. Two small spot« on April 16. Throo on April 17.Group 1871, April 19-15. A spot, a, with a very small companion on April ю. A change in the shape of tho spot, on April 11, causes an apparent shift in tho latitude.Grout) 1871, April 19-May ï. A largo spot, a, closely followed by a faint spot of irregular outline on April 10. Tho latter has become a closely connected chain of very small spots by April 11.
Those have all disappeared by April 11, but a portion of n has become dotaohod, and forms a small regular spot, Л. Several very small faint spots, some of whioh ore measured with 1),ore soon near on April 16, The group поя greatly diminished by April »7, but has undergone an entire transformation by April 18, on which day It consists of a number of irregularponumbral spots, covering a considérable area. Those have undergone a groat change by April 19, and again by April jo, and the preceding portion of tho group has pawed out ofsight at the limb by May ï.
Group 1875, April 10-14. A small spot on April »o. Two or throe small epote on tho succeeding days. Tho identity of tho individual members of tho group on the different days cannot bosatisfactorily established.
Group 1874, April io-May 3. A largo regular spot, a. Ono or two email spots aro soon In ite neighbourhood on several days. The photograph has been carefully examined, and tho change intho umbra on April 11 appears to DO real.
GIUSKNWICH ODSKIIVATIONS, Ш«, 5 G
60 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULJS UPON тнв SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivil
Time.
1886.i io d -i59
I.
Apr. 2i
111-430
Apr. 22
II2-45I
Apr. 23
"3499
iя
BP,H
ЗР,ЕР
Н,ЕР
ЙР,ВР
1M
!•в§í 'о
о" ИИ
187318731874«
1869018710187218721872018721873i873187318740i874
1869018751871018720187261873
18731874«1874i8741874
186918690187201872618731873
1S.S.eIs
I?n
0-9340-9550-9670-8110-840
0-4420-5090-6140*6240-6280-6500-8100-8290-8380-8620-9200-949
0-6290-0390-3230-4290-445
0-6540-6520-683073307610-8080-8340-978
0-83407970-196O-2I2
0448
0-458
"S1
•H
f
fifc
О
76-975-0
Ю7Ч78-i99-2
.289-665-083-684-086-883-971-671-173-0
108-5105-2114-3
282-6143-247'984-478-565-669-869-0
ПГ2
II3-8
106-0105-5
10ГО
276-3278-876-5
76-058-4594
HBLIOGBAPHIC
fJ
о
126-71237
Ч17137-3
202-3150-0
140-3
i39'5139-0137-6I2Ó-I
124*4123"!ii8'4IÍO-6
105-9
202- 1163-0150-4139-1138-6127-0126-1124-0118-3-116-3IIO-8108-0
85-9
206-2202-31394138*51277126-9
»;
1*
о
+ 10-3+ 12*7-I8-I+ б-7
-10-4
+ 4'2+ 8-2+ 0-1— 0-1
- 17+ о-з-fi i '9+ 12-7+ 11-4— 18-4-15-9-24-6
+ 4'2- 6-5+ 7'9- 1-9+ 0-8+ и '9+ 9'3+ 10-6-18-7— 2ГО
-157— 15-5-117
+ 2-7+ 4"2— 2-0
- 1-6
+ 9;з
SPOTS.
II"""яа 1
ЧCQ
elo•3
о4
137
(210)
IO
8оо
16о3оо
62
О
(99)
13оо9о0
оо
72ооо
(94)
0
17H40
ï
IIH-gelB*all•3
n31480
(863)62339
I!103
13IO
2327
486
9
(786)
7866
8693
166
465
75
(7i8)
17498092
5
FACUL-Ж.
&
О
II'S
J~•3
)r !34C
1 88с47107
(837)
7Óc
4Ó4CI2O
(66o)
1 1310
281«217
(629)
jj i S a c
GreenwichOivüTime.
1886.II3d-499
Apr. 24
114-582
Apr. 25
115-564
Apr. 26
116-388
Apr. 27
»!fi
iА
SP,BP
Н,ВР
Н,8Р
Н,ВР
1И1
Та3
fО
11•И
l8731874«18741874
18690187201872618741874«1874
18691%187201872187218726187418741874«1874
1872018721874«1874187418741876
iJa.аe"я ^&.Я
Ун
wЯЪQ
0-5160-5690-6200-6230-929
0-9160-0790-0480-4180-3880-4370-8250-934
0-9310-9810-2990-3030-2860-2600-2090-2180-2590-3210-848
0-4730-4460-2620-2700-3000-2350-9870-7310-907
iai
1«H
V
IIIfc
о
6o-oпб'з115-2113-2114-4ion
276-6308-83274136-5129-5132-3103-3
98-2
281-0275-3279-2287-7281-6278-5172-1164-6159-8156-5
99-0
275-5275-120 ro219-3189-7188-996-0
106-193-2
HELIOGBAPHIO
•a
ï•3
о
1234ii7'9114-1113-5
82-480-7
20 1 -6I39-5I37-51 1 8-0117-7115-8
80-566-8
190-5201-3140-3
i39'91394138-0I 2 I " 5
119-8117-8115-3
65-2
140-2138-5117-9122-4115-3114-4
3I-365-847-1
õ•О
la
0
+ 10-8-i 8-4— 19-0-17-9-24-3— I2-O
+ 4-2- 17— 2-2
— 21'9
-18-5-21-3
-13-6- 9-3
+ 8-6+ 4-3— i"5+ i-i— ï -о— 2-1-13-8-i6-5— 18-4-21-4— lO'O
— 1-2
- 1-6
— 18'4
-l6'2
-21-5
-177
- 6-6
-147
- 47
SPOTS.
II<j>B
чGO
*O ^
itt•5
о59оо
(95)
0
IO
оо
54о
(64)
о7ооооо
510
(58)
7о
67оооо
(74)
IIrç'sol
f S.44м .ill•3
7393
32
(567)
348i
56
38039
(545)
6252
35
17Hn
36010
(534)
22
4379
512
3143
(568)
FACULTE.
a
1 .
il•4
95403
(680)
i8ic
no34°
(631)
661480
425(639)
960156200
(452)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculac relative to the Spote with which they ere associated are indicated by the letters я, я, p, f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Facnlte are expressed in millionths of the Sun's visible Hemisphere.
Group 1875, April 23. A very small faint spot. Group 1876, April 27-May 9. A large regular spot.
ON PHOTOGRAPHS TAKBN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN тнк YEAR 1886. 51
Measures of Positions and Areas of Spots and Faculea upon the Sun's Disk — continued.
GroonwiohCivil
Time.
1886.i i7 l l '524
Apr. 28
118*511
Apr. 29
119*389
i1я
H,EP
H,HP
H,EP
1ь
1та
tf
О
•sid «ff
14
187218721872187401874187718771876
18721872187218740187418781878187718771876
187218721872187401878187818781878187718771876
i>5í.sJ3
SiOã
«И DD
l 'Sй
0*6980*6760-6650-4150-3810-6470-672o*9i i0-9430-955
0-8930-8920-8470-8200-8150-5790-5460-2710-3410-4460-4880-7900-8900-892
0-9520-9310-8330-9470-9370-9200-7200-1240*1300-1500-1760-2640-3100-654
i03
1TÍi
Ia ,
's<CM
U
269-5273-0
270-3
232-9
227-3
89-5
90-7
95-2105-09 г >3
263-9282-8270-1272-2
208-8
H3'9242-2116-7115-5
91-191*195*2
114*9
282-7260*5251-9269-3
270-9248*6164-9I53-5148*0I43-9
87-890-395'5
HELIOGBAPHIC
1S*
о
H'4'39'5138-8117-51 14'3
57-055-031-52б- 524'5
'474145-8141-8138-9138-6U7-Iii4'569*9б5'856-754'93''922-3
20-9
143-2ЦГ2
128-3143-6141-6139-2II7-2
70-669-167*966*457'2
"54' 53'7
1•а£
о
- 34— i*i- з'о-18-4— 19"о- 2-9
- 3-6- 6-5-15-6- 3'5
- 7'3+ 9'5— 2-1
- о-б- 34-I8-I-I8-3— 1ГО
-12*3
- 4'2
- 6*6— 24'О
- 8*6
+ ю*7-ю-з-17-2— 2-О
+ 1-9— 0-8-I8-I— ю*9-10-6
— i i * 3— I 2 - I
- З'З- 3-9- 6-6
SPOTS.
«8 «8«J-OM 3й~
Чсо
-îî•3
о3о
74о0
о21
(98)
980
6iо2
4о0
23
(Ю7)
IO
0
10
43ооо4оо
'9
IISaoiи
•8™ •Ti sS SO3
3515827
36589
IO
164
(776)
1 86167
17365
233812
1
5185
(999)
220
49'44393
261 17
2966
188
FACULTE.
о.
О
•fl'Slá•»i|l•3
'430277179
(599)
1241 8o
)j i67c1
770'95338
(1081)
in76
'3')} 388c) •
1 14«
74.
GreenwichCivilTime.
1886.ii9(1'389
Apr. 30
120*433
May ï
121*406
May 2
122-418
iiя
Н,ЕР
HP.SP
H,EP
H,SP
1M
11fo•sio£
Й
1872
18721872
1874
18740
1878
1878
1878
1878
18761879
1879
18740
1874
18780
1878
18786
1876
l88o
l88o
1874«
18780
1878
1878
1878^
1876
i-S.eS
& 3бд
JrsiIю
b
0*7780*7840*8380*8310*964
0*9480-9370-9870-9850-9850-8560-8550*2460*1970*2030*1880*4480*8190*8910*880
0*9440*9270*4690*4030*3640-2380-9570*980
0*7820*9920*6630*6 1 I
0*6130*5580-049
i00
g4í
3
•ís'«•«ЧPk
o
99-789-9
IlS'3
IO9-I99-6
256-1
284-5
269*2
270-6
27I-7
253725Г1
238-3
235*6
226-7
220-9
97'3IOI-8100*2100*1
252*22517251*8251-3248-2102*2
80*7
80*2•
256*9
256*5
256*9
»537255*21794
HELIOQRAPHIC
1
s•S
о
21-6
2 ГО
17-817-0
3577
130*3iz6'5139*3138-5138-5117-1п6-871-068-267-365-932-2
3'93557357-0
116-5113-672-868-665-932*3
3337328-3
837115-973-669-769-665-832-6
•S
'rtA
о
— 10*0
— 2*5
—25*7
-io*3
-'44+ I2-I
- »'S— O'I
+ i-o-15*9-18*1— 1Г2
-IO-3
-II-9
— 12*0
- 6*8-11*9— 10*9— 10*8
-18*1-18*4-11-9— 10*9-11*3- 6*6+ 77+ 8*8
-12-5— 18-0-11*7— 10*9-12*8
-11*3- 6*5
SPOTS.
Il•«l-öк зSi
*Jrti?8 là•3
(86)
ооо0
69'S0
38
29оо
Он)
40о
49о
2б
2б
52б
(>72)
3876оо
28
*3
Il .3|w
•g*Ë 8(5
•*•
('079)
743935
83'*158
53045
196'38
(9*3)
372'3
4457
36718695
7'4(«99)
365 •524
56
375172
ГЛОтЛ.
P.
es _j-O
lõ
tl«i•3
1091736992
205('542)
231'31
)\ 70S«))f 3 l/c
iSic214
('779)
} 533C
)> 31 ic
(844)
83407/
The Group» of Spots aro numbered in the order of their appearance. When there is no number In the third column it is to be understood that there ie a Fooulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters «, *, p, f, i\ denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hemisphere.
May ï. Faoultn ill-deflnod.Group 1877, April 28-30. Two small spots.Group 1878, April 29-May 6. Two small spots on April ig. Other small spots have appeared by April 30, on which day the group oonsiits of an irregular stream
of spots. The group develops rapidly on the two succeeding days, and on May t consists almost entirely of two very large spots, я and Ъ. Theee spots undergofrequent changes of area and shape on the succeeding days.
Group 1879, May ï. Two small faint spots.Group 1880, May 2-13. A very large, beautiful, and complicated group, consisting of a great number of spots, mostly of irregular outline, following each other in
a long stream so closely as almost to form ono large spot. It was not found practicable so to divide the group for purposes of measurement, as to measureprecisely corresponding portions on different days.
I 5 G 2
MBASUKBS OP POSITIONS AND AREAS OP SPOTS AND FACULJE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faeulse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886II2-4I8
May 3
123-432
May 4
I24-553
May 5
125-454
May 6
126-462
May 7
ég
и
H,SP
ЕР,Н
H,SP
SP,EP
H,KP
1
1Л'Озfо"°a.£03
i88o1880
18780187818782-18761880188018801880
1878«18782-18761880188018801880
1878018782-18761880188018801880
1876188018801880188018801880
|
.S3g «"Я
JáК "SP.»'SД
0-8640-925
0-9120-8190-7840-7260-2390-7510-7970-8010-835
0-8920-9320-8770-4780-5680-6 1 80-6270-668
0-9810-9510-6450-3920-4440-4650-511
0-8050-2070-2650-2360-2770-3210-357
1a
IФ
1
||
h
o
77-8794
255-0258-3258-125742567
75'575-578-277-1
272-9259-5258-9262-7
69-072-669773-0
259-3258-6264-1
57-964-16 I "O
66-7
264-711-516-828-440-852-045-2
HELIOGBAPHIC
tJ
о
334-2326-1
84-873;9
65-3327
332-1328-0327-2324-0
67-i73'1
65-5327
332-0327-9327-8324-2
71-5
32'4332-9328-7328-1324-2
32-5336-6334'S332-S3*8-5
324-1
j
о
+ 8-6+ 8-4
-I5-I-II-6-iro-i 1-6- 6-7+ 8-4+ 9'3+ 7-2+ 8-7
+ го— iro-11-4- 6-6+ 8-8+ 7-8+ 97+ 8-5
— 1Г2
-11-9
- 6-4+ 8-8+ 8-1+ 9'9+ 8-6
_ 6-2+ 8-4+ 11-3+ 8-6+ 8-8+ 8-1-f- 11-3
SPOTS.
и•4\ry« g
Si
ill«1
2364(252)
8o0
322722
О
О
58(219)
54
26
18оо
зб(43)
73433267
7о
89(311)
Ч70
29о
430
(93)
IIHtj
ëlw
ïi*-IS"K «О0
121
821
(2389)
505
5378171329
i iH
59°(2003)
437546179302
35
738(2210)
408476146484
279
605(2155)
15167u
40769
48713
(1205)
FAOULJE.
o.
1
я «?5Я
il<
[ 5060
(996)129
297C
)
>43°6'
(856)
9i
f 5736'
(664)
[ 3 i8c
(318)
I2ÓC
(126)
GreenwichCivilTime.
1886I27'1485
I.
May 8
128-524
May 9
129-460
May ID
130-265
I.
May n
131-160
I.
May i2
132*145
I.
ú
я
8P,BP
Н,8Р
ЕР, SP
8Р,Н
ЕР,Н
8Р,Н
1
|
'S3
tCS
á
1876188018801880
18761880188018801880
188018801880
1880188018801880
188018801880i88iai88ii-
188018801882«1882
i.g
"Í я(5 J
JHí iÍ03
.а*8Q
0-8520-8940-2450-218O-2I2
0-907
0-984
0-43I
0-3590-3340-296
0-6130-5300-4740-941
0-94007550-6730-6260-5750-864
0-8870-8490-7700-3390-3520-917
0-9680-8940-7650-736
-M
OQ
I«Й
V
íв ..S .a
••s иg -ч
o
248-5264-4327-2343-8
247-1264-5297-5305-9303-7310-4
289-0293-6294-0944
259-0284-5286-7286-4287-2
94'5
281-4282-7282-0181-5
177479-2
279-4279-3264-6265-3
НЕЫООВАРШО
•SS•&J
о
32-8337-2ЗЗЗ'о3254
i5'9Згб
3344328-9328-0
324-9
335-3328-9325-3229-3
358-8
3294326-0322-3229-1
338-33337326-1277-5275-9211-5
338-5326-3313-6311-1
1á
о
-Ч- 5•f 8-7+ 8-9+ 8-3
— 22-О
- 6-0+ 8-6+ 9-1+ 77+ 8-0
+ 9-й+ 8-4- S'2
-1ГЗ+ 8-9+ 8-9+ 7-8+ 7'3- 54
+ 8-8+ g'2
+ 74-22'5
-23'3+ 8-7
+ 8-4+ 7-1- 5'9- 5'3
SPOTS.
II<JT3
S J-Staã•g x,
ela
29IO
3852(129)
o330o7
(40)
4i6
IO
(57)
59ii7o
(77)
34o40o
(38)
5o0o
IlH*daiSi
M•g £
•<
16252
332541
131435
605
278(9°9)
40080
171
(65 ï)
3934°566
(495)
2316
21
I I
7
(276)
119126l12
FACULTE.
|C5
II
11•5
399183«::
(582)
195
(195)
106(106)
1963616'
189(746)
1\ 4OIC)
188(589)
1I). 7,r, IV
The Groupe of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faeulse relative to the Spots with which they are associated, are indicated by the letters я, *, p, f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculae are expressed in millionths of the Sun's visible Hemisphere.
May 9 and 10. Spots and Faculœ ill-defined. May 11, 12, and 20. Photograph faint. Limb of sun very faint.May 18. Photograph faint. Faculae ill-defined. Group 1881, May 12-13. Two small spots, a and b.Group 1882, May 13-14. A close pair of small spots, a, measured as one. Another spot is seen in the neighbourhood of a on May 13, and another, but not the same,
on May 14.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 53
Measures of Positions and Areas of Spots and Faoulse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.I32 l L I45
j'
May 13
133-091
I.
May 14
134-386
May 15
135-087У'
May 1 6
136-263I.
May 17
137-392
May 1 8
138-100I.
May 19
139-097
j
May 20
iя
SP, H
EP,H
dP,HP
U, EP
H, EP
EP,8P
H, EP
H, EP
11*
fT3ã2o•stà Я
iSSiaiSSib
18821882«
18831883
ij.sH J
o|
li
IIIoQ
0-4170-4010-904
0-9590-9050-8810-8670-966
0-9790-9260-8620-951
0-9530-9050-946
0-8570-905
0-7720-8740-948
0-942
0-5890-5380-867
i&1
•Bv"à
lir214-5207-9
79-9
279-7265-7264-6
77481-7
264-9203-8
81-4105-4
196-8163-396:7
i oo- 186-0
85-6175-0I I I - 2
I I 2 - I
254-7254-5I 1 5 - I
HELIOOBA.PHIC
à'S
3
278-6275-52OO-0
324-0316-1313-1192-5177-1
312-5281-5175-5162-6
270-3191-7154-1
150-8145-1
144-2185-0123-7
115-7
206-9203-4113-8
|í
о
-22-7
-23'3+ 8-0
+ 8-5- 5-0- б-о•f 9'6+ 74
1
- 5'5-594+ 6-2-15-4
-67-2-61-8— 7-1
- 9-8
+ 2-1
-624
-20-8
-21-4
-10-5- 9'9-22-5
SPOTS.
Ilа-яg sS|
с« 's S"e-SQ
о
4о
(9)
48
(12)
(о)
(о)
(о)
(о)
(о)
52
(7)
IIH -Ч
alи«*J.«1?|.o
о
igH
(237)
3248
(80)
(o)
(o)
(o)
(o)
(o)
87
('S)
FAOÜL.SI.
10
•s?lá'"та
1"
248
(Ю47)
980
1 8 ю-
9б98
(1255)
21344
'7337
(467)
5747
412(516)
239
(620)
16340
282(485)
695
(695)
630(630)
GreenwichCivüTime.
1886.I40d-403
May 2i
141-194
M.
May 22•
142-678
May 23
143-098
I.
May 24
44-573
May 25
145-449
May 26
§Я
SP,KP
H, HP
SP,EP
H, EP
SP,EP
H, HP
1fcl
1•ng
1О
*10«
1884
18850I 8 8 5 &1884
1 885«1885 с1884
1885«i885c1884
18841886
18841886
1Ja.aк"à
•ft JC
Q
0-9860-897
0-6660-648
0-9390-893
0-952
0-8670-8340-779
0-8230-927
0-917
0-8870717
0-8200-9230-996
0-9900-821
0-92404570-9060-952
0-8970-8370-287
0-8030-926
gOB
g43
•Sa
§5i B1
о
1ОО-8юб-о
287-9289-5IOI-0
93-2
279'9282-6
285-9ioî'3
91-5iiz-í
281-8284-5103-5106-591-095-8
281-8260-6194-0III -О
957по'4
201-0
273-*I2Ó-0
97'2и 44
HELIOORAPHIO
о!•в
I0
74'391*6
184-2182-6
74'6Sri
196-0183-6179-674-169457-9
184-6i8o-274-065-051-934-2
180-7154-313 го73-934-828-3
15Г2
Ч4'374'234'721-7
|s0
— I PO
-15-1
+ 10-6+ 11-2
— 10-9
- 3-6
+ 8-9+ 10-2
+ 12-3
-10-4
— Z'I
— 2Г1
+ IO-2
+ I2-I
— IO-6
-ч;з
- 5'9
+ I I-5- 8-5-64-7— 10-6
- 5-8— 19-8
- 8-6+ 2-1
-10-7- 64
SPOTS.
Ilá -saiBi«ils Sa
64
(64)0о
S3
(53)
i6о
73
(89)
23
0
89
(112)
81i l
(92)
635
(68)
IIи чo!ilфji*
287
(287)
52
386
(393)
4512
380
(437)
10929
377
(5 « S)
32760
(387)
32044
(364)
FACULTE.
Iол'Сlà•ï41
2980117(44)
37SC146
(521)
161)| 2Z7'-
448c146
37(1019)
! i86c
72C12710856
(549)
108137203
I4&C261
(857)
217239
64^206
(726)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there is a Fooulaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated are indicated by the letters n, », p, /, c, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faouliu are expressed in millionths of the Sun's visible Hemisphere.
May 24. Photograph very faint. Spots and faculto ill-defined.Group 1883, May 20. Two small spots.Group 1884, May 2i-June í. A large regular spot.Group 1885, May 22-24. Two very small spots, a and b, on May 22. 1 has disappeared by May 33, but a third spot, et has formed by that date and a has
increased in size.Group 1886, May 25-31. A small regular spot.
54 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FAOUI/ЛЗ UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
ïreenwiehCivilTime.
1886.14б"'52б
May 27
47-393
May 28
148-529
May 29
149-483
e
я
Н,ЕР
H, SP
SP, H
H, KP
1iÃ'OS
fo
2*
18841886
18841886
188418861887«18872»18870
1888«I888&18841886i887a188701887^
i-Savчliaoj
«w из
Q°
0-9400-9390-9020-7760-1690-6310-8120-866
0-9840-9710-9380-7730-2690-4670-7900-975
0-9050-4830-2270-6730-6940-7080-9070-975
0-9520-9230-8390-7460-8490-8350-6570-0850-5090-5400-548
'a&
í•И
â1||Hi
0
272-8253-9263-8246-4183-198-599-2
115-6
273-2264-8253-0243-9230-5
'10Г212ГО
80-4
245-5249-0
II2'4
72-371-673-078483-1
250-6249-3240-6266-8255-1256-0254-5186-6
66-2
68-866-9
HELIOGEAPHIO
.
1'So
1
о
ЧЗ'З142-61377I2I-7
74"o34-819-7l6'0
141-6138-2131-1109-8
74-334-914-2
345'S
109-874-335-0
6-55-03-6
342-8330-3
105-6100-4.87-882-591-690-274435-1
6-33-83-6
!'•gо
+ 2-3
-154- 6-1— i8-i— 10-7- 6-2
- 8-0-22-5
+ З'о- 5'3— 16-3— 20-4-10-7- 6-0—24-6+ 9-2
-22-4— 10-6
- 5-8+ I I -2
+ I2-O
+ H'3+ IO"2
+ 6-6
— ï 8-6-19-3-24-7— 2-8-13-0— 12-0— 10-6
- 54+ I I -3+ 10-7+ 11-9
SPOTS.
b h
•8-й"^Тз
я~чСО
°-$!я
886
(94)
707
(77)
6780
оо
(75)
47
6542
О
О
IM hдоНч
öS.5-•*§•СО
^л-КJ iQ
36045
(4°5)
321
зб
(357)
3232910
44
(37°)
3238
3331б40-21
15
FAOUL-Ж.
g
О
•S"?IQ
л g
4Ä
333120140231
76395
(1295)
178142260500
20444°
(1724)
293
438245
(976)
138'197
77251
Jf ' 5e
GreenwichCivilTime.
1886.149а>48з
May 30
150-544
May 31
151-524
June ï
152-417
June 2
153-089
I.
June 3
(ôM
я
H, EP
SP, BP
H, SP
H, EP
H, EP
£
1£'Sgí
ïj|M
i888ai888Zi188418891886
I888&18841889
188418891890189018901890
1890189018901890189118911891
1S.3кláQí P
IIÚJ 'S
0-7920-9040-916
0-9320-9130-8700-7670-9610-9360-8170-4170-2710-8660-883
0-9890-9240-603
0-9270-9810-7480-3130-3310-3710-389
0-1950*2130-2460-2620-7620-8070-783
"iCG
1Co>
1J jir
u
76-782-994-5
240-727.6-2263-9251-8257*2256-6257-3306-9
.251-977-698-5
257-1258-8294-8
266-6259-4289-1
54-757-264-160-8
24-631737-847-7
109-2109-2107-6
HELIOOBAFHIC
I1
0
3434330-3328-4
86-385-968'993-989-1
' 7444°435'3
321-3318-8
88-674,- 541-7
63*374-042-2
340-6339-3335-9335'S
342-0340-2337e93354298-8297-5
13о
+ 1О-2
+ 6-1
- 44
— 27'3+ 54- 5'5-14-2— 12*4-12-7— 10-6
+ Ч'°- 5'3Н-ю'4- 77
— 12-8-10-5+ Ч'З
- З'З-10-4+ H"0
+ lO'I
+ 10-0
+ 9"°+ 10-6
+ 10-0
+ Ю'2
+ 1ГО
+ 9]9
-15-5-13-8
SPOTS.
ч кдоЗаsiяГöS.
* ъ|"а
(82)
и5667
ï2
(137)
4566
5(по)
бзо2
О
О
о(65)
о8ïï4оо
(Ч)
t-t Liдо
alSucj"§ 5"K S) Q
(495)
138181337
20I I
(687)
241
282
Ч(538)
235IO
8'949
(285)
6359
4i174
Ч(126)
FACULTE.
1âА~Ц
ТЗcfl вJÄ
641595194
(2278)
4370
264122
)} 22 и;
мбс
2о8172
(1236)
)/ 494'-'
(494)
loi252,4
(413)
)j 476
(47)
The Groups of Spote are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there ig a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, я, p, /, ,1, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculaj are expressed in millionths of the Sun's visible Hemisphere.
June 3. Photograph faint. Facula) ill-defined.Group 1887, May 39-30. Three small spots on May 29. One of these has disappeared by May 30, and a new spot has appeared.Group 1888, May 3o-June ï. Two spots, a and I. Both have increased in size by May 31, and have receded from each other.Group 1889, May 31- June 2. A small spot.Group 1890, June 2-8. A number of small spots in a straggling stream. Most of these have coalesced by June 6 to form two spots, a and b. Only a and b are seen
on June 7 and 8. ' 'Group 1891, June 3-12. Three small spote on June 3. The group has very greatly increased in size by June 4, and forms a fine stream of spots ; tho preceding
spot, a, being a large regular spot. The group continues to increase in size until June 8, after which it diminishes again, and the spots nearest to a disappear, nalone remains by June n.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 55
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivil
Time.
1886.I54'h382
June 4
•«55473
June 5
156-572
ú
íя
SP, H
H,EP
SP,BP
3s
•oI
1O
1Ífc
1892018901890189018901890189018910189118911891189118911891
1892 Ъ18920189018901890189018910189118911891
1892 Ъ189018900iSgou18930i 8 9 3 &«89418910
i.aя •
(3.3
lis "iК
0-898O-82O
0-6460-2970-2840-2750-2630-2380-1990*5240-570o's680-5890-5900-5910-612
0-8860-8400-8090-4410-4400-4010-4090-3220-3800-4050-448
0-9320-8880-9170*9530-6610-6610-6020-6190-5880*5410-275
ix§Л
•И,1я ,
líHиo
266*5241*8249*0302-8304-7310-5307-8323-3328-6118*8117*0114*2119*2117-2114*0118-4
243-9255-12527292-0295-3295-2299-2143-4134*1127*2130-6
282-6238-0190*9257-0
286-0287-7262*3260*7279-2196-8
HELIOGRAPH IG
v
'fw
о
ЗЗ'З2Г1
7-8344-3343'334«'9341-8338-03357301-5298-1297-62974296-8296-1295-6
14*811*3
7*83397339'133б*8ззб*б3°3'9299*о296-0294-6
8-8359-0
12-3
34I-«340-8ззб-з338-5336*2ЗЗЗ'о305*4
ш
3
Ãо
- 3-2-22'7
-«З'З+ 9'2
+ 9;з+ 9'2+ II-0
+ 9-8— 14-6-15-0-«34-i6*6-15-6-13-8-16*9
-22-8
-12-4
-i3;8
+ 9'9+ 11*6— 14'8-15*1-14*о-IÓ-8
+ П-8-27'9—64-0-12-3
+ 9'«+ 10-7+ 10-7- 4-6- 5'3+ S'«-15-0
SPOTS.
33«1
Stчн»•g
|!1
оо2
О
0
0
о33
о3о0
185
(б«)
оо0
оо5
82
67
10
(но)
оо
«512
О
О
0
75
33«10-2-я
о!"•н .j.iiï«
5487
H' «3n
20218«412
3562О
(397)
Зб«Su23IO
21
4°36l
534«
(674)
188
7947
785
398
FÄCHLE.
P.
0
л "кláM S
44 T3
•5
87300
(387)
«57)
) °
(«3)
6512478
23SC
[249?
GreenwichCivilTime.
1886.i56d'572
June 6
157-429
June 7
158-402
June 8
159-420
June 9
и
1Я
SP, ИР
H, SP
H, BP
EP, SP
3
1 '1fJ•Bj£
189118911891189118911891
189001 890 i1893018932«1891018911891189118911891
1890018900189301893618910189118911891
18910189118911891189118911895
1.9S
44
<§йЯ
lá«Д_ю
l 'SQ
0-2340-2690-2500*2920-2590-306
0-9850-9230-802
0-73907730-731
0-3310-3170-2870-3140-304
0-9180-8670-8960-862о*5380*4440-4420-418
0-949о'9340-8480-7040-6580-6290-6210-6090-5860-931
«A
"gaã§
•f
ЙPu
0
181-5
180-2172-8168-0163-9160-2
255-9241-2282-6283-7263-6262*2225*0219*0212-8
2O6* I
2O2-7
196*1
280-8
281-4
2б4*3264-9
240-6
232*9228-2
225-5
265-2
280-I
256*8
248-5
247-0
246-2
2437
241*0
240-8
84-8
HELIOGRAPHIO
"Oã
"
o
30I*I3OO-8298-9
297*1296-5294-5
8-7353-534--8336-0339-5335-8305%5301-7299-5296*8296-5294-3
335-83397335-6305-3297-8296-4294-4
334'*33« 'S3I9-9
3014299-2298-0296-5294*9194-6
••3
iÁЧ)
-13-3-«5-3-I4-I-1б*з-Н-2
-1б-5
-13-8-26-2
+ 10-3+ ю'з- 4*8- 54-«54-14*6-I5-I-14-6-1б-5-i6-6
+ 10-1
+ 10-0
- 5*о- 4'*-14-9-«5-1-16*7-16*6
- 44+ 9'6— 10-8-14*5-144-14-2-«54-16-6— 16-0+ S1«
SPOTS.
33«l-o«Sя~
В*s"8 -,
ill•<
оо0
937
(121)
IO
ооо
79и0
оIO
I I(121)
О
0
о0
81«4б3
(Ю4)
94ïо
«35оо
С«3)
33Н-о£3О-2-
fel«*•g ^ill•5
59
u75836o
(8«3)
6o«9«93
45«72So737648
(87«)
6726HIO
589744633
(859)
5293
IO
5722
9l6
(646)
FACULjK.
в.
о
IoёЗ«M ^
'S|1•<
(74*)
«5073
173Р
(39°")
| 3*5''
(325)
»37597
59
129''(юн)
The Groups of Spote are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Fooulaunaccompanied by a Spot. The positions of Faoulio relative to the Spots with which they are associated are indicated by the letters », », }>, f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculto are expressed in millionths of the Sun's visible Hemisphere.
Group 1892, June i-6. A small spot, a, on June 4 j a second, b, has appeared by June 5 ; « has disappeared by June 6.Group 1893, June 6-8. Two small faint spote, a, and b.Group 1894, June 6. A very small spot.Group 1895, June 9-ю. A small spot.
56 MEASUBES OP POSITIONS AND ABBAS OF SPOTS AND PACULA UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Paculsa upon the Sun's Disk — continued.
•rreenwichCivilTime.
1886.l6od'30I
I.
June 10
160-402June ii
161-383
June 12
163-601
June 13
164-199M.
June 14
165-508June ï ;
166-460June 1 6
167-500
June 17
168-164
I.
June 1 8
îíя
SP, EP
H,SP
H,SP
BP,H
H,EP
EP,SP
EP,H
M,H
H,BP
1
1
'S3í1ufc
1891018911895
18910
18910
18960
189601897
189601897
i.s1 •6|lá
•H ta
IIG
0-9660-9290-8240-7590-842
0-935
0-9900-9390-957
0-8500-8660-902
0-942
0-955
о-86з0-9910-9320-955
0-9060-7840-9640-8880-8860-981
gM
a1
S
Jf
Й «t•~-a1-Яfi
о
278-52ÓI'3252-0248-0
84-5
254-6
255-594-680-9
77-593-4
105-0
116-1
105-7
108-2101-9104-8
92-9
•253'9II 0-6
102-5105-594-295-4
HELIOGBAPHIC
1
tЛ
0
32Ó-I
319-0305-1298-2194-2
304-9
305-0i54'31 5 го
150-2148-01 44' S
194-8
98-2
98-374-588-6837
210-8
98-173-786-185-368-8
4sã
0
+ 8-4- 7-8-14-3— 16-0+ 5'1
-14-1
-14-3— 4"o+ 9-0
+ I I - I- 2-4— 13-0
— 24-0
-14-6
— 14-9-II-6-13-2— 2-3
-13-8-15-0-iro-13-0— 3-0— S'°
SPOTS.
Il•Чтзg 1.§"§^M
jlî•3
102
3о
(i°5)
76(76)
61
(61)
(o)
(o)
(o.)
18(18)
i9о
(19)
22
Si
(73)
II
OÄ
te?
•H •|||
•5
49°44
7(541)
475(475)
377
(377)
(о)
(о)
(о)
из(ИЗ)
82
296
(378)
102
253
(355)
FACULTE.
о.
C5
•S"*láilA<
2721521 1840
206e
(874)
663/
(663)
555/226
85(866)
81343241
(665)
(o)
156(156)
209C(^ej-2C^1316-6ip
474181
(847)
8282C
103034910780
(803)
GreenwichCivilTime.
1886.l69d'429
June 19
170-366
June 20
171-196M.
June 2i
172-549
June 22
173-385
June 23
I74-393
É
aЯ
EP,H
SP,H
H,BP
8P,H
SP,EP
8P,H
1
1
•a3tí
о"!$£
189601897
189601897
189601897
189818981896018971899
189818981898189618960i89718991899
1898189818960
i.g
l§1д
s f9м.1 'SQ
0-5900-8450-898
0-44007190-970
0-3250-574
0-9210-8780-8250-6370-5840-3290-3460-7300-9410-977
0-9440-93007850-7410-7180-4550-4450-2500-5730-5950-905
0-9150-8770-608
'Л
§ейs1
•â
§ А13&
о
u8'3104-6
99-6
1304108-3
94-0
151-9112-6
260*6
270-9
247-1280-8
282-3
206-5
133'196-2
I 1 0-6
I03-2
266-6
253-9279-I
280-5
279-2
233-2
228-4
165-4
99-0
98-6
I I 3 - 2
278-4
278-6
240-8
HKLIOGUAPHIC
41«
о
98-174"267-4
97-974-142-5
98-074-6
1554150-3141*7128-2124-2
97-874-242'72 I - I
12-4
148-5145-О
129*6
I25-6
1237
1 00- 1
98-374-543-842-216-2
130-8125-898-0
4êÃ
0
-I4-7
— 11-3
- 7-8
-14-7-11-7- 3'5
— 14-6— iro
- 7-8+ J-9-17-4+ 8-5+ 8-9-15-0— 11-6- з-i+ 18'5— 12-4
- 2-5-14-1+ 8-5+ 9'3+ 8-1-137-15-1-11-7- З'З- З'З
+ 8-6+ 8-6-15-3
SPOTS.
Il«Ira
SIЯ^«J1 _
g||«I
i l42
(53)
i i22
О
(33)
1521
(зб)
6о
15190
(40)
232
О
0
IO
IO
I0
(46)
IO
оH
II
§1g!W-8
« .«||
•Si
118240
(358)
1052OI
34(34°)
91
168
(259)
433585
ИЗ7
(313)
7855
55
77129i i6
(366)
951648
FAOUL.S:.
P.
0-.-";
láIII1•Ч
I IOC
92(202)
6901940
(о)
2477870
87/337in
(930)
423198
lOie
281(1003)
1 n8c
Тле Group» of Spots are numbered in the order of their appearance. When there is no number in tho thud coiumn it is to bo understood that there is a Faculaunaccompanied by a Spot. The positions of Faculœ relative to the Spots with which they are associated are indicated by the letters я, *, j>, /, с, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculœ are expressed in millionths of the Sun's visible Hemisphere.
Group 1896, June 16-26. A repfular spot, a. A email companion is seen near a on June 23. Group 1897, June 17-28. A large regular spot.Group 1898, June 22-24. Two compact cluster* of small spots on June 22. Three spots on June 23 ; only the largest two remain on June 24.Group 1899, June 22-23. A very small spot on June 22. A second is seen near it on June 23.
ON PHOTOGRAPHS TAKBN AT тнв ROYAL OBSHRVATORY, ÖRKHNWIOH, ш INDIA, AND IN MAURITIUS, IN тнн THAR 1886. 57
Measures of Positions and Areas of Spots and Faculee upon the Sun's Disk. — continued.
GreenwichCivilTime.
1886I74d'393
June 24
173-391
June 25
176-417
June 26
177-484
June 27
178-398
June 28
1
A
SP,H
ВР,Н
SP,H
ВР,Н
SP,H
1f1аf(S
á*
1897
18960!897
189601897
18971900019002»19010
1897igooo190061901019020
|
.aItО.ц
JÎ«Я u
К
0-2910-9630-985
0-9650-9350-9140-7620-4480-8810-9260-949
0-9790-9230-9370-8Ç20-9030-8330-8860-6260-907
0-9020-7860-6270-6710-990
0-9530-9520-8950-4380-4930-9430-950
"i&а1»
fa
Г
0
2I3'6
78-794-0
278-4
250-8
245-72474
236-9
78-594-6
827
247;5
237-1270-9232-0254-22507247-0817
255-2252-6
75-676-51057
268-8256-82547
70-572-1
106-971-4
HELIOQKXPHIO
|
o
74-2350-6345-1
126-3u 8-6114-498474-0
350-0344-2340-0
114-0103-6102-4
96-395-292-798-173-9
333-0
86-7737
3457342-3303-3
83-882-673-6
346-9343-2302-9300-3
4
S0
-u-7+ I I - S- 3-6
+ 8-8— 16-9— 20-9-I5-5-II-8+ I I-3- 3'3+ 7'7
-21-4-14-1-294+ 2-1
-32-4-11-6
-157
— 12-0
+ 8-6
— I2-I
-II-9
+ I I - J
+ iro-15-1
- 0-3-117-12-44-iro+ 1Г2
-14-9+ I8-S
SPOTS.
Il.4-0 ;
а вSÄ
•8й .л
ilî•<
7
(30
IO
9
(19)
.
5Ч
(i 8)
7iо0
(8)
0
оI
527
(6o)
е ё•нчЗ
Hnsь! Io-iË -вl* J.
|1S
'l 02
(26l)
43113
(«S«)
1792
(109)
792536
244(384)
21
30
32
83
(530)
FAOÜLJ3.
1l _
•S "K8(3
II
il
517136
(77«)
401104161I37C
550120
523(1996)
1067886636288
:ooc
4SI
155
2390(394)
1811691628
4620182/
(u 56)
GreenwichCivilTime.
18861 7 9d- 4.06
June 29
180-393
June 30
181-413
July ï
182-391
July 2
183-399
Jg
»
BP.SP
SP.BP
SP,H
H,BP
H,BP
11•ëpяtí
1 .
S*
19011901190101902019030
190119010190119011902019030
1901190119011901019011902019030
1901190119010190119020190319030
19011901
1.9
lri
11ùЧей
0-9640-95007200-8250-8360-8480-86.50-938
0-9550-8490-692071907100-7330-7380-849o-giS
0-5290-5530-54°0-5710-5960-5830-7300-956
0-3850-4080-4220-4580-4190-602
0-594
0-9270-316о'ЗЗЗ
iсоа
1
-а1а .
J3о
254-8263-82557I Ю'О
II2 '3Ю9'8
70-2
I I 2 - 5
269-32 Ó I - I
пб'4IH-311Г1
117-867-2
115-971-3
125-31287120-3122-7127-461-6
122-2
87-5
I44-5146-71384142*2
50-6I34-6132-2
247-8184-9179-2
HELIOGRAPHIC
1
ï
0
71-469-643-0
305-3304-7302-9
299-5291-5
57-942-6
305-5302-9302-83027299-7291-3279-3
3054305-0303-3302-1302-0299-2290-7259-0
305-630S4302-1301-8299-0291-5291-0
10-6
307-1305-2
тзiо
-13-8- S'o- 8-2-14-6-16-8-15-0+ 18-6-19-9
+ 0-3- 5-9-15-6-15-0— 12-6-177
+ 18-6— 2O-O
+ I8-3
-15-0-17-4-13-0-15-2— 18-4+ 1 8-7-20-5+ 3'3
-15-1-16-8-15-2-18-1+ 18-4— 22-1— 2O-6
— 19-1
-H'9— 16-0
SPOTS.
IIд i
§1li!
oo
51187
(76)
549
o4
17
(88)
4o0
591682
(89)
O
O
59IO60
o(75)
3- o
II
o— »
E**ï*
417
36977
144(638)
126347
12
96
69
130
(780)
552718
361153S2
76
(742)
2520
348117
524
49(615)
IO
2
FAOUL2B.
|
J _
•s?a *SP
.gl
|!
498486
259C
11701720
(877)7099
> 3O2C
iдбс26l/
6o(888)
100
(100)
(o)
208
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faoulœ relative to the Spots with which they are associated are indicated by the letters n, г, p, f, e, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulœ are expressed in millionths of the Sun's visible Hemisphere.
June 27, Faoulœ very faint. Group 1900, June 37-28, Two small spots, a. and *.Group 1901, June 37-July 9. A large regular spot, a ; several small spots have formed near a by June 39, and these increase in number and siie on the two
succeeding days. After July ï these companion spot« begin to diminish again, and by July 8 я alone is seen.Group 1902, June 28-July 4. A regular spot, a. A small companion is seen near it on July 3 and a second on July 4.Group 1903, June aq-July 9, A large but rather faint spot, a, on June 39. It diminishes in site on the succeeding days. A small spot appears near a on July »,
and others on the succeeding day, when the group hoe become an irregular stream of «nail spots, a and the other spote in the preceding part of the group havedisappeared by July 5.
GBBBNWIOH ODSBBVATIONB, 1886. 6 H
58 МВА8ШШ8 OF POSITIONS AND ABBAS OF SPOTS AND FAOULA UPON THB SUN'S DISK
Measures of Positions and Areas of Spots and Faculee upon the Sun's Disk — continued.
GreenwichOivil
Time.
1886i83d*399
July 3
184*404
July 4
185*407
July 5
186*402
July 6
с
Iя
Н,ВР
Н,8Р
ВР,8Р
Н,ВР
1M
1»оgл
0
1Ífc
1901190Ю190119020190219030190319031903
I90I19ОЮI90I190201902190219030*19°31903
190119011901019°31903
190119010190319°3
is.аèIsД о
<Öj«
ÍI5Jbя
0-3530-323о*37о0*2780*2870*4650*4800*504О*5120*912
0-895о*3940*360о*39о0-285О'ЗО20-2390-4160*4530-404
0*9230*8960-5110*4900*4860*4220-400
0-9710-9470-6630-6440-5330-499
СО
"S
я4Î
I
a
WВн
о
174'9169*5i68'7
20*9З-Ч
151*1152*1152*4140*4100*4
278*7210*1
20б*4201*5334-0342*4341*6180*1176*7164-3
280*5264*22244224*0229*3200*1196*6
264-9278-0238-1
240-8
223-52I9'6
HELIOGBAPHIC
•оj»
Л
о
303*6ЗО2-ОЗО1*2299'5296-52917291-6290-8285-3240-8
355-8304-1301-8300-9299'8297'9296*8292*4290*7285-7
34б>3342-0Зоо*9299*730 Г2
287*7285-8
34'"5337-3301*9
288*7285-5
4
1j
о
-I7-I-I5-I-17-8+ 18*4+ I7-5— 20-6
-21-7
— 23-2
— 2О'О
- 8-0
+ 9'3-16-5-15-3-17-8+ 18*3+ 20*1
+ i6*5— 20*9-23-3-19-3
+ 11*1- 3-6-18*0-17*2-15-1-197— 18*9
- 4'°+ 8*8-17-5-I5-3-I9-3— 19*0
SPOTS.
Is«H «H
«l-oPH gP5-2-чt/1"8 ,A
ela•3
i6112
8oIo3o
(89)
o6oIO
ooo7oo
(77)
70
6o8
(8o)
o45
7o
(52)
0 0*Н*Н
«•gл go-ä-S-•мю .
•iff•3
16325115
174
37874
(545)
i i33679
552
3575
(485)
27H
3032046
(410)
24308
5639
(427)
FAOÜLJB.
0.p5jaó
1|
•8*8
si•ч
65(273)
175
•
075)
473164
(637)
i i 6337
(453)
GreenwichCivilTime.
1886i87d*5oo
July 7
188*518
July 8
189*420
July 9
190*456
July io
191-638
July ii
192-119т1.
July 12
193-472
July 13
iiяH,SP
H,BP
H,SP
BP,SP
EP,SP
H,BP
BP,SP
1M
êM
T3g
fo13 1doaЙ
190101901190319031903
19010190319031903
190101903
•
19041904
is.aëa gâ. 5
í íg "g
j ïs
0-9830*9640-8000-7300-7000-6810-654
0-8650-9120-8160*7850-783
0-9470-9740-8840-923
0-9660-9180-965
0-9090-885
0*9400*7960*869
0*6780*6620*929
Xs.. 05
g
S«H
1g .
14Hi
o
264*228l*8248*1246*5238*123S-5233-6
287*62517'
242-3241*62397
287*6
253-9245*6107*3
246*1111*0
82*2
27I-282-9
271-682-6
83-1
250-3248-8I IO'4
HELIOQEAPHIO
f
^
0
330-1326*1301*3294-8290-02877285*1
297-2301*3287*7284*6283-4
297*2300*9284*11 60*7
284*0148*5137*2
261*7134*1
260*1137*4129*8
212*521ГО
106*9
41о
- 5-0+ 12*4
-1+-9-14*2-i8*7— 19*6-197
+ 17-1-14-9-197-19-2-I9-3
-r-iS-o-14*7-I9-3-14*1
-21*8
-17*4+ 8*6
+ 2-9+ 8-2
+ 3*o+ 8*5+ 8-1
- 9-8— 10-4-17-1
SPOTS.
SS«ЙЧН
$ък g
Su•н02 .
s||•5
65ооо0
(65)
Siооо
(SO
47о
(47)
(о)
(о)
(о)
оо
(о)
е ё4<чн
Ей TI
o-iи«.&
jll•3
.3615
3843
(478)
3311622
12
(380
2886
(294)
(о)
(о)
(о)
44
(8)
FAOUL-E.
frg5
»Ч 1lá0<S
ïï; -Ч
1311942I7C
(542) .
199293C
)У м8с
(6.0)
209334С2920149
(984)
4191051 08
(632)
87246
(333)
4393
249(485)
ISS055)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculro relative to the Spot» with which they are associated are indicated by the letters n, t,p,f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spote and Faculœ are expressed in millionths of the Sun's visible Hemisphere.
Group 1904, July 13-14. Two small spots.
ON PHOTOGRAPHS TAKEN AT тнн ROYAL OBSERVATORY, GRBHNWIOH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. S9
Measures of Positions and Areas of Spots and Faculaa upon the Sun's Disk — continued.
GreenwiohCivilTime.
1886.I944>389
July 14
195-466
July 15
196-387
July 1 6
197-128
I.
July 17
198-557
July 1 8
199-200
M.
July 19
tí
1
SPjEP
EP, SP
SP, EP
H,EP
SP, EP
'
H,EP
1âi1и
o•tí -ia
dl
190419041905
1906
19061906
1907
19060190619061907
19060190619061906190619066
190601906190619066
1
.S
S Э
а иIp5
Úh
0-8190-7930-5150-901
0-9140-972
0-9830-8940-9240-9630-864
0-7950-8150-8480-909o-giá0-960
0-5430-5780-5950-6110-6490-666
0-8930-8320-4120-4450-4710-558
i03
I•B•a3
8 j jwäF(Ц
o
254-1253-7236-6101-4
256-3IOI-6
258-0103-3103-11114
92<3
104-7106-4105-5113-2
92*2100*2
113-2113-9112-3
111-9113-2
251-4244-8121-9120-9117-7117-9
HELIOQBAPHIO
4s
I
0
213-2210-6
186-2
974
2IO-370-9
2 I I - 8
71-967-862-274-2
' ( "• О
73-071-467-9
62-1
57-651-8
74'972-871-470767-566-6
157-2148-6
76-074"о71-866-6
ï3
о
-ю-з— IQ-O
-12-4
- 77
-10-5— IO-2
— ю'9- 9'7— IO-2
— 18'9+ 0-4
- 8-6-10-4-10-4-18-8— 0-1- 8-4
- 8-2- 9'5- 9-1— ю-б— IO-2
-II-4
-I4-I
-177- 8-0- 8-6- 8-2— 10-9
SPOTS.
Il«1Я •§
и1
-•§?l lá^
0о2
(*)
О
9оо
(9)
1749о
(30)
4"6оо7
i8(72)
'
4*3ï
!9(65)
Il
SI0~
S •§•ë^j là
• 2з329
(64)
42
(42)
8041
13
(134)
103
6416
(210)
244
25
5167380
(443)
2163312
125(386)
FACULTE.
&0
I?8o
•s|J!
i í c f rí I3 i c
360(SU)
90
(420)
471 286c
IÓ2C88
(683)
]} 288c)
263/48
119(718)
(o)
7775
( 'S»)
GreenwichCivilTime.
1886.200d>403
July 20
201-421
July 21
202*408
July 22
203-2I7
M.
é
i
SP, EP
SP, H
BP.SP
H,HP
1
i1g
?*r
1906019061906190619066
1906019061906019061906190661908
19060190619061906(2190619061906190601906190661908
1906019060*1906
1-S.9
Isai?БМ
JJ
i"8
0-9560-8780-8200-8690-2430-3230-3240-3480-3770-985
0-9060-2880-2770-2720-2630-2730-2800-9520-939
0-9500-8670-4540-4570-4090-4250-4550-3970-4100-3810-3610-3410-8510-8640-928
0-5930-5650-533
i00
S
1
0»
S
J 4!ío
257-0248-5275-6238-3163-2146-0141-4138-778-1
275-0215-7192-5187-8184-5179-9173-394-479-1
275-3239-9239-2231-2»38-5233-0226*4231-0226*4224*6216-9215*296-479-4
125-1
248-5244-4243-8
HELIOGRAPHIO
1í
о
i5i*9138*7135-8134-6
76-s70-168-867*2OS'S
359'9
132*276-870-669*268-367-065*2
355-5356-8
126-0108-2
77-175'274'S74-173772-171-669766-7OS'S
356*4354-03534
77-074-372*1
V•оs!
о
— ю*9-1б*2
+ 74-»4'3- 8*4— ю*6- 9-8— 10*2— 1ГО+ 12*6
+ 6*7- 8*5-10-5-ю*4— 1О-0— ю-б— I1-O- 2*6+ 12*0
+ 6*7-227- 8*6-11*7- 74- 9'9-13-3- 9'5-и*4-10*7-11*6— 11*0
— 2*7+ и*8— 29-8
- 8-1- 9-б- 8-9
SPOTS.
Il«1И-i
s?***J!Q
75iSо2
IS
(107)
7ii5оо8
13
(98)
8lооо0
о0
14о8
Ч
(117)
6i0
4
IlsiSA5"g
«iîШ<1
3«546
722
84
(474)
3595
ï?388
6899
(594)
36046
2912
S360
22
6398
(662)
3433616
FAODLJB.
|0
•S"*SU
«iI1
176»391415°
«95(901)
184
35IC602
(437)
So84
2730269105
(78i)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, t, p, /, o, denotingrespectively north, south, preceding, following, oonoentrio.
The Areas of Spots and Faculte are expressed in millionths of the Sun's visible Hemisphere.
July ï;. Photograph very faint. Spot« and Faouleo ill-defined. Group 1905, July 14. A email spotGroup 1906, July :5-зб. A small spot on July 15. The group rapidly increases in size on the succeeding days, the preceding spot, я, becoming a large regular spot.
a is followed by a number of spots in a long stream. Somo of these spots coalesce to form larger spots, b, a, and d ; and on July за, and the succeeding days,the group consiste of the large regular spot, a, followed by three smaller spots, b, c, d, with a number of very small spots scattered round them, a has undergone .a remarkable change of shape by July 34, and a considerable portion has become detached from it by July 35. Ь has disappeared by July 3$, 0 and d by July 16.
Group 1907, July 16-17. A "»mall «pot. Group 1908, July 91-31. A regular spot.
SHS
во MBASUEES OF POSITIONS AND ABBAS OF SPOTS AND FACUI/Д: UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculte upon the Sun's Disk — continued.
GreenwichCivilTime.
1886203d-2I7
M.
July 23
204-404
July 24
205-198
M.
July 25
206-388
July 26
.
iя
H,EP
H,EP
H,EP
SP,EP
1
1•S1eC
!Ô
1!»
190601906190601908
190601906^19061;190619060190919091908
19061906019060?19061;1909190819100
190601908191119119119119129129100
as.ae'S»6-3
1*!li.1*8Q
0-5150*4900-4620*7410*9OI
0*7800*7600*7210*6920*6670*4940-5440-5340-929
0-8860-8720-8590-8320-3250-3820-9790-938
0-8650-9720-1720-4540-4900-5110-5430-8730-8990-8980*8260-976
«Q
§02
|•H
•â-S.§.3
.*
o
240-22454234-2
98-782-2
254-22SI -3249*9246*8246-9
84-384-5
104*2113*7
259-0256-3
253-583-1
I I2-I104-6II 2*4
240*4258*7I 5 I * 5102*6102*5100*299-573473-9
I07*6Il6'3U3-0
HELIOGBAPHIC
i3
о
70-269-865-6
35б"3338-8
76-874-570-967-966-1
358-0354-6356*5323*2
78-276-174-271-2
358-3356-5300-9311-1
55-576-4
3567335-2332-9331-3329-2300-5297-2300-1310-5287-4
Í
•3
o
— 10*1— 7*1-107- 2*8
+ 9'3
- 8*8-10-5-10-5-117— iro+ 7-4+ 7-5-197
— 7*1- 9*2— 10*6-10*5+ 74
-13*1— 18*8
— 22*2- 9-6- 3'2- 0*7— 1*2
- 0*5- 0*5+ 17-2
-I3'1— i 8*0— 2ГО
SPOTS.
II«1я*
-il•ч
5оо6
(76)
586оо0
оо
II
(75)
0
37о0о
1616
(69)
Чi8ооïо08
27
(69)
II
ai0-2.
"fCG•s .j*.K ÍQ
•Ч
32
4i876
(525)
3525657138
231683
(608)
32245
7
12
831 6o
(S80)
177ЮЗ
l6
II12
99
64182
(583)
JFAOVLJB.
&0
а _•я?lá-iBC.<i
107(107)
132(132)
81(81)
135
ií
2OIC
97118
(494)
GreenwichCivilTime.
1886207d>492
July 27
208*433
July 28
209-448
July 29
210-508
July 30
nк
Я
EP,SP
EP,H
EP,H
EP,H
1
I
1
80
&
190819110
19121912191219100
190819110191 ib1912019121912191219100
19081911019120-191219121912191219121912$19100
190819110191201912191219122»19100
i.g
и яn't
Jãl-sQ
0*9530*8940*2340-1960-2540-7470*7600*7900-7740*9130*942
0-4120*0910*1130-5560-5790-5970-6280-6330-880
O'6lO0-3030-3590-3900-4050*4210-43804520-4690-468
0-7810-5260*2040-2240-2460-2830-343
ica
§•fi
if§.s
&H
0
2457255-3227*9ii 6*91 1 6-071-273-8737
112*6115*9
87-8
2494213-9170767-966-168-970-O
I i g - I87-8
257*1257*2
56-556*359-063-566*663*165*4
132*7
26l*32б4-5
i8"430*541*450*4
161-7
HELIOOBAPHIO
.
|
а
o
55-248-1
356-8336-83337299-1297-6294-5299-7285-5276-4
357-0337-33334302-0300-7298-9296-5299-9272-7
357-3338>o302-8301-1299-7297-9296-4296-1294-6300-3
357-3338-4303*1300-1297-2293-8300-6
iÁ
o
— 2Г1-10*4- 3'5
- 0-9+ I7-7+ IS'9+ 17*2-I3-5—20*9+ 4-0
— 3*2
+ 1-4— 0*7+ 16*9+ 18*3+ 17-1+ 16*9-13-2+ 4'7
- 3-2+ 17+ 16-9+ 17-9+ 174+ 16*2+ I5-3+ 17-1+ 16-4— 13-1
- 3-1+ 2*1
+ 16*9+ 16*8+ 16*3+ 16-0-13-2
SPOTS.
II($1ËBI
ill•4
169o
1 14o
46
(86)
21
4o
18oo
1528(86)
'34
12
Oo0o2
12
17(6o)
12O
12OO
526
(55)
е ё•й«й
H-e
2"^jsi
ill•5 ,
112
3721
ИЗ
32
31196
(542)
ИЗ20
3
96
516
"9188
(56o)
10815
132IO
675
2583
156(547)
948
1243*4359
139499
FACULTE.
P.
в
li-sa|l
•ч
213104
)f 277C)
1 66с255223
(I238)
147
(147)
(о)
(о)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there it a Faoulaunaccompanied by a Spot. The positions of Faculté relative to the Spote with which they are associated are indicated by the letters я, »,p,f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faonlœ are expressed in millionths of the Sun's visible Hemisphere,
July 24 and 28. Spote and Faculœ ill-defined.Group 1909, July 24-25. Six small faint epote on July 14, measured in two clusters. Only the preceding cluster is seen on July 25.Group 1910, July 25-Aug. 5. A regular spot, a. Two very small companions are seen near it on July 31.Group 1911, July 26-30. Four email spot« in a scattered stream on July 26. Two small regular epote, a and J, on July 27 and 28, b has disappeared by July 29.Group 1912, July 26-Aug. 5. Four small spots, three of which are measured together on July 26. The group has greatly increased by July 27, and by July 29, has
become a long stream of spots of which the first and last, a and b— both regular epote— are by far the largest. The smaller spots disappear or coalesce on thesucceeding days ; and on Aug. ï the group consiste of five spot«, a, o, d, e, and b, of which в and b have disappeared by Aug. 2. a remains alone by Aug. 4.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, ÔRHÉNWIÔH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 6Î «
Measures of Positions and Areas of Spots and Faculro upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.2iid-505
July 31
212-496
Aug. ï
213-232
M.
Aug. 2
214-584
Aug. 3
215-305
I.
.Igя
BP,H
EP,H
H,EP
EP,H
H, M
1M
1
1Я1о
ilfc
19081912019121912191261910191001910
191201912019120"191231912619100
191201912619120*19100191319131913
19120191219100191319-3191319140
1912019100
1S.9S
на|M8*9
îï«
0*9010*9020-2470-2 II0-1860-1720-3450-3500-313
0-9630-9450-9270-4090-3740-3250-2980-2760-469
0-9020-5420-5150-4540-5820-8390-8580-881
0-7590-6710-7820-6470-69207080-796
0-8780-8570-871
1m
gii1в шft
Рн
о
281-9263-3321*2330-6
348-7358-9206-6200-4199-6
277-9261-9254-1298-3
299-9306-3304*8308-4225-4
280-3291-9291-8295-0237-0100-5
99-9100-5
286-7286-424ГЗ105-3104-0105-0
83*8
240-3286-1250-9
HELIOORAPHIO
aí
1*о
358-4357-3303*0299-9295'9293-9302-7300-9299-8
355-6350-5346-33027300-4296-5295-3293-6300-7
3357302-4300-6296*2300-9215-1213-0210-5
302-1294-7300-7214-4210-8
209-7200-0
298-9
302-7
3OI-O
•§
ïÃ
о
+ I3-3- 3'5+ 16-9+ 16-5+ 16-4+ 157— I2-I
— 13-3— 1Г2
+ 9'2
- 5-6— 12-3+ 16-6+ 16-3+ 16-8+ 154+ 15-6-13-6
+ 11-9+ 16-8+ 16-2+ 16-5-I3-3- 5'5- 5'3- 6-3
+ 16-6+ 15-5-134
- S'!- 6-2
+ 8-6
-22-4+ 17-0-I3-3
SPOTS.
II«!it•в"J**•4
H21
2
370
230
(70)
18оо0
о15
(33)
зб2
6
Hо0
0
(58)
13о
20
О
0
О
3(зб)
10
i8
«M «M
Ht)ni gp -iilЧ*л«11•ч
90I2O
27I633
3126
3(418)
105Ч3523i i
113(302)
>341374
1148
nn
(Зб5)
749
8i55
Ч22
(210)
44i i 8
FACUL.-B.
1о•S'KláL. Ml-s8Ï•5
S761 5 is/
(727)
237133152
(522)
88
)[ I 7 I C
(259)
69n/(69)
58282/1380
GreenwichCivilTime.
1886.2i5d >305
Aug. 4
216-426
Aug. s
217-589
Aug. 6
218-405
Aug. 7
fК
1w
H, M
H, SP
H,EP
SP,BP
1
1
íío*J*
19131913»913191419140191419141914
19120191001913019*319131913191401914
19130i9!319131913
191301913191319131913
|
.9V
J*ОЯ
1.8 "ãалJ-s
0-5100-5280*5590*5820-6490-6790-6940-6970-6990-8780-954
0-9540-9630-2810-3000*2920*3480*4590*479
0-9860-8970-2080-2350-2140-2130-8540-919
0-9500-3210-2860*2910*2890*2640*826
i00
g
J
"S
10l -á
•g-ч£o
111-4107-8iio-ino* 5
85*284*485*982*184-382*5
103*6
285*6254*1132-6128-5125-4124-9
84-582-6
284-9270-1200-6
1737186-6I7I-8
89-2
83-0
274-0
232-7
226-4222'9
216-9
216-38f2
HBLIOOBAPHIO
»'SIЛ
о
215*1
2134211*8
iio*4202*92ОО*б
199-4199-2199-0181-7172-9
302-1300-7216-8215-1215-02 I 2 - I
20ГЗ
2OO-I
294-7276-9
2174
2147214*6
2 I I - 5
154-6146*0
2 74' 5217-32144213-9212-5211-5146*6
4
л0
- 5-2- 3'9_ 5-8- 6*6+ 7-8+ 8-4+ 7-3+ 10*0
+ 8-5
— 11*0
+ i6*8-134- 4-8- 47- 37- 5'5+ 8-1+ 8*9
+ I5-7+ 2-9- S'0— 7'1
- 5'9- 5-8+ 4-0•f 8*9
+ 5-8- 5-0
— 6*0
- 7-0- 5'9+ 8*4
SPOTS.
Il«1pj,".
Ч•ë ~•ч
70
3оо
12
О
0
о
(50)
о»3
5ïо42
О
(25)
'9оо7
(2б)
1бооо3
(•9)
II
SiOi
ífc•M31 .
sll•4
338
1312
2
222
2
2
(258)
52
97527S
2486
(250
766
2836
(146)
9899
1636
(-68)
FACUL.-B.
в-l _•ч "R8(5|<8d•9
23145
(646)
454C1670
(621)
171212
72125
(580)
197
201
(398)
The Groupe of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, *, y, f, c, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulte are expressed in millionths of the Sun's visible Hemisphere.
Aug. 3. Photograph faint. Faoulro ill-defined.Group 1913, Aug. 2-12. Three small faint spots on Aug. » ; six, measured in three clusters, on Aug. 3. The group has increased in site by Aug. 4, and by Aug. S bas
become a stream of spots, of which the preceding spot, a, is the largest. The smaller spots have all disappeared by Aug. 8, leaving a alone ; a has changed itsshape by Aug. 8, and by Aug. 9 a considerable portion has bcoome detached and forms a separate spot, b, b has greatly diminished in size by Aug. 10, and hasdisappeared by Aug. n ; whilst a has increased in size.
Group 1914, Aug. 3-5. A small regular spot, a. On Aug. 4 four very small spots are seen near it. On Aug. 5 one very small spot is seen near it.
MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULTE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.2i9d'4i4
Aug. 8
220-576
Aug. 9
221-364
I.
Aug. IQ
222-400
Aug. 1 1
223-407
Aug. 12
224-445
Aug. 13
225-228M
Aug. 14
226-335
Aug. 15
с
«Jя
SP,H
ЕР,Н
Н,М
EP,SP
Н,ЕР
8Р,ЕР
Н,ЕР
ВР,8Р
1
1
1
íАочÓ&ъ
1913^
1913^1913«
1913^1913«
1913»1915«
1913«1915^1915«
1915^1915«
915^
ï
1915«
§
.5|
II's
«я «sãIм
1*8Q
0-5040-954
0-7140-7070-852
0-9400-8310-8240-8120-987
0-7810-9290-9600-943
0-9120-989O'SOO0-869
0-9680-6320732
О-боб0-893
0-9580-8650-7860-420
i09
§
f4
§ ,s'•З'Й•g -Я»H
o
249-2103-1
258-6255-5107-1
275-6261-0259-1
91-097-2
275-5261-6ion107-4
276-1263-5104-2104-2
277-1109-9108-9
115-3121-2
2ÓI-2
2474
276-2
I30-6
HELIOOBAPHIO
e
1g"3
о
217-2
n8'5
218-2217-1118-0
233-8
217-5109-2
83-7
20Г2
216-7
77-58г6
202'5
216-885-1
78-0
198-8
86-178-4
78-755-8
16971534149-7
78-8
1í
о
- 47— io'4
- 3'5- 5'5— 10-9
+ 7'5- 3-8
+ З'о- 6-0
+ 8-4- уз- 8-6— i4'o
+ 8-3- 54
- 8-9
+ 8-6- 7-0- 8-9
- 94
- 64-15-9+ 9'°- 9'5
SPOTS.
Il«1й-'
§ UтС-кs lá•3
17
(17)
оЯ
(8)
0
13
(13)
Ч25
(39)
о3
25(28)
322
(25)
12
(12)
12
(12)
II«'SO-3-
^t.
**•£§la•3
96
(96)
2549
(74)
972
(80
72128
(200)
9317
126(236)
9112
(121)
I I I
( I I I )
83(83)
FACULTE.
0,
<§
1$ia•sf|Ä•5
125("5)
138038)
49f 119
92238
(498)
1163050379C154
(954)
159322/2Ó1C
33OC(I072)
223
I I7C(34°)
107(107)
546o75
(189)
GreenwichCivilTime.
1886.227d>393
Aug. 1 6
228-466
Aug. 17
229-411
Aug. 1 8
230-240
I.
Aug. 19
231-406
Aug. 20
232434
Aug. 2 1
13я
SP,EP
Н,ЕР
Н,ЕР
Н,М
EP,SP
SP, ЕР
1fcl
i(3
1а(5
u
•alSé
19161915«
1915»
1915«
1915«
1915^1917
i.ag g0*1
1«s|Seeя*
0-8550-2980-9130-967
0-9650-8590-3280-9110-946
0-4720-8050-8790-898
0-8790-6 12
0-7570-8800-8630-8780-8780-9650-925
0-9460-8810-8640-8250-7880-7280-7280-862
0-9520-9010-972
"i09
|•Й
13чí*h
о
283-9163-8юб'б
8о'5
279-8281-3210-6
78-698-6
234-577-5
101-585-1
272-0244-2102-7126-0108-9
46-3917
126*278-2
266-9258-7248-5268-1252-1
95-289-780-6
262-9253-6737
HELIOQBAPHIO
«i
1
§
^
о
142-8
78-82O'4
7-6
145-1129-2
79'23'2
3597
79-8
357-1352-8
107-679'9
358-3353-1349'5348-7344-8339-2337-6
ЮГ2
90-8
86-686-079-9
344-3343-8330-6
88-278-7
299-4
I'•§
^0
+ 154- 9-8— I2-I
+ IO-9
+ 11-3+ 13-2- 9-6+ 13-1- 5-8
- 9-6+ 14-1- 6-7+ 74
+ S'l- 9'7— 5"°— 27-0-12-5+ 41-2+ 1-9-32-2+ I3-5
- 0-7- 6-6— 14-6+ 2-4- 9-6+ i-i+ 5-0+ II-6
- 4-6-II-5+ 174
SPOTS.
е ё43 ч«
•"'SPî Sд<_
PU.
ï"?к Зй•3
0
13
Оз)
12
(12)
13
Оз)
8
(8)
2
О
(2)
(о)
IIsioit$i
TtfPO•4
10
79
(89)
69
(69)
55
(55)
38
(38)
176
Оз)
(o)
F-iCUL-B.
f0
•9"ia
M
l-s-11*•Ч
23IC
IO!
140(472)109
8o
488253
(930)
261151176(588)196
49604523
21731
114(73S)
96371
825994e
49122
(873)
218284
217
(719)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, ï, p, f, a, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spote and Faculœ are expressed in millionths of the Sun's visible Hemisphere.
Group 191$, Aug. 11-30. A regular spot, a, with a small companion, b, on Aug. n and 13.Group 1916, Aug. 1 6. Two very small spots, measured together.Group 1917, Aug. 20. One very small spot.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. es
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivil
Time.
1886.233d498
Aug. 22
234-502
Aug. 23
*35494Aug. 24
236-228т1.
Aug. 25
237-389
I.
Aug. 26
z38-575
Aug. 27
*3944
Aug. 28
240-641
Aug. 29
241-466
Aug. 30
öSE
Я
EP,H
SP,H
EP,SP
H,EP
H,EP
BP,8P
8P,H
EP,SP
H,SP
3h$&gfО
douи
19180
19180
191801918
1919^19191919^
1919«1919^
1919a
19196
19190
1920019206
1•S.aк
kJT
MJ oЙ
0-9700-9060-931
0-9350-8340-795
0-841
0-9060-7480-776
0-7960-6880-7230-733
0-9010-5260-586
0-9750-90404530-5060-914
0-4590-769
0-9370-956
B
§M
1fl
I
:||fc
0
255-972-0
1 10-9
108-0117-7
72-1
111-9
280-2116-1116-8
282-2125-6127-2125-8
281-5143-0140-1
284-2270-6162-8155-2
98-2
196-9103-4
79-880-0
HELIOGRAPHIO
.
1ь>
о
76-82974296-1
283-5298-8296-8
283-2
3Z-5283-228I-I
47275-8273-9272-5
0-8276-5272-4
' З'1
349'5276-7271-8219-9
276-7220-1
1874183-9
4
â0
-II-8+ 19-2-16-5
— 14-0— 18'4+ 18-4
-14-1
+ 12-3-14-1-15-6
+ 14-0-17-8-20-3-19-9
+ 134-18-1— 2O-2
+ 154+ 3'6
-18-4— 20-3
- 4'5
— 18-9
- 5-5
+ I2-O
+ I I - 7
SPOTS.
33«1ч*"ъ•4
(о)
о
(о)
0
(о)
оо
(о)
17о9
(26)
Iо
(0
2
О
(2)
0
(о)
712
(' 9)
,33
I!Es,jll
(о)
6
(б)6
(б)
2
2
(4)
864
75('65)
6оS3
(»3)
3517
(50
12
(«)
37
(93)
FAODL-Ж.
1
*~M
|l
Si•ч
251
340go
(68 1)
1960103230
(5*9)
1900(190)
42
f J9 I C
(*зз)238
(238)
107
(107)
"579
222
(416)
170
l 285C
(««S)
Greenwich
Civil
Time.
1886.2420-405
Aug. 31
243441
Sept. ï
244-431
I.
Sept. 2
245'337
I.
Sept. 3
246-465
Sept. 4
247-507
.E
Я
EP.SP
EP,H
H,EP
H,BP
HP.SP
H,HP
3h
!ïA
О
ч*0»Ь
1920019206
1920019206
192001920192019206
19200192019206192!
192001920192061921
1920019201920
1s.ggII1JÍfi
0-8020-8540-8310-877
0-9320-8840-7890-6770-744
0-9700-9650-8930-8770-4870-5330-5370-5770-9010-983
0-9690-9480-9530-2890-3410-4000-896
0-091O-122
0-174
0756
0-254
0-244
0-204
f&
g
4»
I
lsIIp*
o'
290-0241-8
80-380-7
246-1283-3238-9
80-080-9
293-0284-1253-62447
77-678-379'580-084-5
101-5
256-2280-024747°'372-876-5
103-2
13-553-260-4
108-9
293-8303-5293-2
HELIOQKAPHIC
tM
о
298-4298*0188-5'834
295-92944277-0188-8183-2
297-1294'5279-2274-9189-6186-4186-1183-3153-9141-0
280-0278-7274-7190-4187-1183-2144-8
190-5186-0182-845-5
191-7190-1189-0
•ssâ
о
+ 20-3
— 19-5+ I2-I
+ II-6
-I9-2
+ I 5 - I— 19-0
+ I2-I
+ II-6
+ 24-0
+ >54— 114
-18-1+ I2-3+ 12-3+ 1Г7+ 1I-6+ 8-1- 9-8
-ПЧ+ 11-7— 18-9+ 11-5+ 12-6
4-12-0
- 8-5
+ I2-3
+ 11-3+ 12-0
- 9'2
+ 12-8
+ 117
SPOTS.
Ilg!A U
-ïi1
IO
13(23)
IO
29(39)
6оо
23
(29)
90
21
0
(30)
20
О
IO
о(30)
i6о0
33Ht!
О4—'
Bi„*.jlî
6783
(150)
106198
(304)
7262
I6S
(245)
833148
(253)
12920
90
«3(»S»)
122
132O
FACULTE.
o.
О
i£
*î2l•5
15654
> JOOC
(510)92
253344
> 222C
(9'0
144«3874
122
130
225
(833)
• 7 521
178
202/
(476)
i6oc(160)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, t,p,f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculte are expressed in millionths of the Sun's visible Hemisphere.
Aug. 24, Photograph faint. Faculto ill-defined. Aug. 27. Photograph over-exposed. Spots and Faculte ill-defined.Aug. 28. Spots and Faoulœ ill-defined.Group 1918, Aug. 23-25. A very small spot, a, followed on Aug. 25 by a second.Group 1919, Aug. 26-29. Two spots, a and b, with a very small spot between them on Aug. 26. b has divided into two spots which are still measured together by
Aug. 28, and hoe disappeared by Aug. 29.Group 1920, Aug. зо-Sept, 10. Two spots, a and b. They tend to separate in longitude and some very small spots appear between them, b diminishes rapidly after
Sept. 3, and has disappeared by Sept. 7. a suffers daily changes of shape and size from Sept. 4-Sept. 8. On Sept. 8 it is a regular spot. Several portions whichhave become detached from it form distinct spots in its immediate neighbourhood on Sept. 5 and the succeeding days, but all have disappeared by Sept. 10.
Group 1921, Sept. 3-4. A small spot.
в4 MEASUBES OF POSITIONS AND ABBAS OF SPOTS AND FAQUIR UPON тнв SUN'S DISK
Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.247^507
Sept. 5
248-440
Sept. 6
249496
Sept. 7
250-398
Sept. 8
251-468
Sept. 9
,;.
Mea
sure
r!
H, EP
EP, H
H, EP
EP, H
EP, H
1
1
1
t0 _
o<a
192019206
19201920192001920192019206
192001920192019201922019226
1920019201922019226
1920019201922619230
i.aг -
ÎJ|asi|î
0-1500-124
0-8390-4810-4570-4520-4270-4180-3070-8570-953
0-9480-6620-6340-6320-6220-5060-4770-8730-944
0-8060-7840-6640-6 1 60-877
0-8350-9230-9120-7720-9910-7440-8150-988
i1лî
1H
о
ЗОЗ'О315-6
2бо-8282-5280-5285'!291 Ч285-1287-3Ю5'699'3
263-8282-3285-3280-2
283'!
232-1
229'797'8
105-8
28о-8
279'5243'2
240-8109-9
278-1280-6278-8248-7
78-51174Ю9'6
96-2
HELIOOBAPHIC
-
tЛ
о
185-4183-1
221'5
194-2192-8192*1189-9189-9183-0lOÇ'I
94-6
222-3193-2190-9191-0190-1175-6173-491-983-5
193-9191-8176-9172-9
82-0
182-7193-8192-1172742-382-874-345-5
Lat
itud
e.
0
+ I I -9+ 12-3
- 3-6+ 12-4+ 1ГЗ+ 13-3+ 15-6+ 12-9+ 12-2
- 9'3- 6-6
— 3'5+ I3-6
+ I5-3+ I2-I
+ 13-8
-II-4— in- 3'2
-12-3
+ I3'°+ 12-0
-II-6
-II-4
-I3-5
+ 10-7
+ I2-6
+ 1ГО
-II-4
+ 12-3— 14-8-11-4- S'0
SPOTS.
>2 «2<(ro
Sig*tnjlf
0
3(19)
оо
250
о0
(25)
22
О
I
О
о3
(26)
2О
IO
О
О
(30)
29
ооо
(^9)
IIH-o
ol
St]îî
2
37(194)
Î7
1543
1310
(192)
1751238489
(246)
120689
25
(222)
117
26
832
('S3)
FACULTE.
f
11
*îli
(о)
102
56177
(335)
130
146277
(553)
)> 2130
187(400)
251{ i t f t fl 34ÖC
I02C192054
220289
(1456)
GreenwichCivil .Tune.
1886.252d'398
I.
Sept. ю
253-503
Sept. u
254-339
Sept. 12
255-396
Sept. 13
.л
Меа
впте
п
H, EP
H, EP
H, EP
EP, H
1
31t
CS11192001924019240192461925192301923
192401924019240192519230
19240192401924019246192301923
192419241924192419241924192519251923«19261926
íSi.3
IIí.S'i9м
.9*0Q
0*9030-9840-5920-6190-77607160-9280-9640-929
0-4070-4380-4660-5280-8030-830
0-8480-3020-315
0-3450*4800-6730-7710772
0-8900-315
0-3570-3160-3850-3360-3810-3550-1350-1910-4800-66707010-916
ím
1o.
1
Posi
tion
Axi
s.
о
254-128 г8Il6'O
114-9113-0
97-679-07-9-898-5
131-2128-0127-0102-4
79-2ЮГ2
2547I57-5I50-9I47-6134-2
78-9787
IO2'4
256-0I77-3I72-I169-1167-8lOS'O160-9I59'5148-0ЧЗ-i
76-8104-4101-3
75-5
HELIOOBAPIIIC
15
ís>jо
175-3194-0
8o-878-866-468-344-537'946-2
80-878476-767-945-044'2
ЧЗЧ8ro78-876-967-145-336-9387
134-572-970-970-369-068766-566-569-767-245'233-630-5
6-7
Lat
itu
de.
о
— iro4-12-8- 9-0
-12-8
- 0-4+ 12-8+ 117— 5-1
- 8-6- 8-8- 9-6— °'3+ I3-0- 5-2
- 8-9- 9-0— 8-8- 9-8-12-8
+ I2-8
+ i3'3- 4-8
- 8-9— i ri-134— 10-9-14-9-11-7-13-9— 12-2
+ 0-7- г6+ I2-6
_ 4-0
- 27+ l6'2
SPOTS.
II
ilSijil
13о0
о0
32
о
(45)
4о0о
34
(38)
о30о
33о
(зб)
4о2
О
0
Iо0
0
22
6
О
(35)
Il1!hte
lu
14553
IO
'7242
13
(435)
Ч1312
4239
(282)
162420
9221
7
(297)
39
12
8897
i i19
18427'9
(358)
FACULJE.
§
&^Ц43
í*
250525«/
)j 90C
1í
529(1822)
333/247(580)116
1380бдс
169(492)
102
i78(340)
The Groups of Sjxrts are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculœ relative to the Spot» with which -they are associated are indicated by the letters n, t, p, f, a, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculte are expressed in millionth^ of the Sun's visible Hemisphere.
Group 1922, Sept. 7-9. Two small spots, a and b. Only Ь is seen on Sept. 9.Group 1923, Sept. 9-21. A large regular spot, a, which has divided into two portions, b and a, by Sept. 18. Several very small spots are seen from time to time following
the principal spot.Group 1924, Sept. 10-15. Thie group extends over a large area, in which small spots appear and disappear in a very irregular manner. On Sept. ю the group consists
of two widely separated clusters, a and b, b is not seen on Sept. n, and is represented only by a single spot on Sept. 12. But by Sept. 13 the whole of thepreceding cluster, a, has disappeared, and a number of email spots are seen irregularly distributed over the greater part of the area, which on Sept. ю and 12 layvacant, between a and Ъ. On Sept. 14 and 15 the group forms three compact clusters of very small spots ; but the clusters on Sept. 15 do not correspond preciselyto those seen on Sept. 14.
Group 1925, Sept. 10-15. A small spot on Sept. ю and n. No spot is seen on Sept. 12, but on Sept. 13 the group is seen again as a number of very small spots arrangedin two clusters. The group forms an irregular stream of very small spot« on Sept. 15.
Group 1926, Sept. 13-20. A number of small spots following one another in a straggling stream. The first spot, a, is the largest and beet defined, but it Buffer« continualchange of shape and area, alternately coalescing with email epote near it, and having portions separated from it.
ON PHOTOGRAPHS TAKEN AT тнв KOYAL OBSBBVATOBY, GBBJSNWIOH, IN INDIA, AND IN MAURITIUS, IN -гни YHAB 1886.
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivil
Time.
1886
I.
Sept. 14
257-293
I.
Sept. 15
258-585
Sept. 1 6
В
gЯ
H,BP
H,HP
Н,ВР
.8
Ã1с£
1d«!
192419241924192519251923«1923192719261926
19241924192419251925192519251923»192319231926«192619261926192619261926
1923a
19231926«19261926
1.а3
•Я и
9мJ 'S
0-9250-3570-3690-3360-1620-164о'ЗЗЗ0-4710-3800-5180-5750-8410-926
0-9880-5200-5090-4850-4250-4260-3900-380o-цб0-193О-2О2
0-287
0-288
0-307
0-3I3
0-345
0-3590-342
0-829
0-25I
0-163
0-2390-2250-228
0-956
iM
1•Я
•S,1||H
0
256-1206-4200-7199-7244-52OO-2
72-8
77-212 1-2
IH'4
I05-I
75-886-5
258-4234-6230-6230-3257-2
248-8251-8
33'S52-262-2
138-6132-7130-7124-5129-9126-9119-7
88-5
295-I309-2208-9201-4187-3104-9
HEUOQBAPHIO
•оS
sJ
о
129773'571-970-8/0-766-445-336-3
35430-6
6-5356-2
128-074-272-371-073-172-770-069-845-039-738-237-836-535-333-8ЗЗ'З32-0SI'S
352-6
45-139-238-336-4
334321-1
•S'•g»s
о
- 9'9-II-5-13-0— II -2
+ 0-6- 1-6+ I2-4+ I2-4
-4-6- 4-6- 2-6
+ 15-8+ б-о
— 10-2
— iro— 12-2
-II-3
+ 1-2
- 0-4
— o-i+ I2-8+ 13-9+ 12-5- 54
-S- 3-2- 5-8- 5'5- 2-8+ 54
- 4'9- 4'9
— I2'O
BPOTS.
Il«J-0
11.!*£s SQ•3
7о6I0
23О
о12
7
(56)
4о0
3i40
24о0
7о5о3о4
(55)
24о6о0
(30)
IIH-TS
о -а
St!|íg g Q•5
4121
6
I I
I 66
6
2
4122
(329)
'1
à132O
2
1572
I I
392
9i72
18
(345)
14820
27IIl6
(222)
PAOULJK.
g.
О•Я "КЦ•Чfi1— •
•З
188
300379
(867)
> 59
245(404)
155(155)
GreenwichCivüTime.
1886.2594-420
Sept. 17
260-478
Sept. 1 8
261-117
I.
Sept. 19
в
3я
H,PH
H,BP
BP,M
111g.
*!0-юи
1923«1926»192619261926
19236192301926«192619261926
19236I923C1923192319231926«1926192619261926
i.g.SJ a•Э
<fi «
S ãgooütsО
0-9470-879o-8oi0-4180-3680-3480-3030-3130-8920-983
0-9280-9090-6150-6020-5610-5370-4940-4900-8020-9090-926
0-9610-9580-7670-7240-7200-7000-6850-683о'ббо0-6290-632о-6о4о-6о70-9590-851o-gii0-8780-8850-922
i£S
"аs
J.3«•<о.
0
261-4254-3263-8284-82334227-1229-7221-5107-8
95-8
255-3265-6281-5284-2248-4246-5246-6242-7113-298-075-0
267-0254-8256-9281-0283-6280-6281-9283-6252-825342514252-6249-7176-899-4
117-286-474-862-0
HELIOGRAPHIO
•aо•&§Á
0
90-6
79773-245-037-835433-932-6
320-3302-0
71-544'743-638;2
33732-6
317-5302-4298-1
71769*146-644-844'342-841-64J '337435-335-1334ЗЗ'о
350-5301-1298-1296-5295-3290-6
4>1'•i
0
- 5-8— 10-2
- 0-7
+ I2-6
- 5'9- 6-8
-12-4
- 4'4
-10-7
— ГО
+ 127
+ 14-2- 5-8- 6-2
- 5-0- 6-6
- 4'2
- 0-9-12-3
- S'3+ 12-9+ H7+ 12-5+ 13-3-'5-8- 4-7- 5-9- 4-6- 6-3-65-9
— 2П
+ 6-6
+ i6-8+ 28-5
SPOTS.
Iltel
Si«1ÎSlft•3
19Ч40
о
(37)
23
78о3о
(4i)
Ч9ооо
150
0
II0
(бо)
IISaEt**£к SO
•ч
142
6l452064
(332)
122
24
573718IO
(268)
11749
2
35
8o3i
5°2
(S«)
FAOUL.fi.
1О•a "í;lá^181— •
•ч
73288Ю7
Ч«112
(7«б)
223
»59
109'59
98(748)
235239214
> 3S9C
124
3559о23бб67
(1772)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third oolumn it is to be understood that there is a Facmlaunaccompanied by a Spot. Tho positions of Faoulio relative to the Spots with which they are associated aro indicated by the letters n, t, p, f, e, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spot« and Faculte are expressed in millionths of the Sun's visible Hemisphere.
Group 1937, Sept. 14. À very small spot.
GEBBNWIOH OBSBIIVATIONS, 5 I
60 MBAÖUBBS OF POSITIONS AND AREAS OF SPOTS AND FAQUIR UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivilTune.
1886.26zd '3I5
I.
Sept. zo
263-442
Sept. 2 1
264-509
Sept. z z
265-328
I.
Sept. 23
266-303тл.
Sept. 24
267-123rx.
Sept. 25
268-106
I.
в
Iя
EP, M
EP, H
H, M
EP,M
EP,H
H,BP
H,EP
&
í•оã
I0
ô w
192301923/1192319231926«1926
1923^
1928.1928
19281928
1928
19281928
|-S
q mU;g
|«
g 'g
.3*0 ,D '
0-9170-9650-8830-8790-8570-8450-8320-7900-9390-9500-9390-988
0-9260-969
0-0950-158
0-7810-7160-8970-8990-1310-049
0-8970-8800-956
0-9370-5220-883
0-8790-7100-659
"iM
g«G
V
ï1.2•й иg-1
Рч
0
260-22O2-I
283-1
280-6
280-7
282-2
2587
258-4
184-1
136-4
I14-O
95-1
261-5
280-9
62-7
77-3
274-2
288-7
283-6
264-9
2924
3094
2754
IOI-7
98-5
280-4
277-9
97-8
251-9277-5277-2
НилоавАРию
1
м
о
474z6'544'944441-840-4
ЗЗ'о350-6283-7276-82Ó2-O
34-144-1
308-1304-6
354-2348-0
7-06-0
309-6304-8
354-1229-82I8-I
349-2310-5218-0
324-63 I J ' 5307-4
õ
1J
О
- 6-1
-58-7+ '4'9+ 12-7+ 12-8
+ 14-1- 54- 4'7— 62-4—40-0-19-7- 3'9
- 5-1+ 12-3
+ 9'5+ 8-9
+ 77+ 18-2+ I5-3
+ 9-8+ 8-8
+ 7'9- 6-9- 6-0
+ I2-I
+ 10-0
- 3-6
-12-34-10-2
+ IO-O
BPOTS.
kl N
<it!« ã§1«H00
sie•9*
IO26oo
12o
(48)6(6)0o
(o)
o. o(o)
(o)
o
(o)
oo
^ »H
н -ао!и«
«MW
g g Q•3
44125
5i88oI Z
(284)
90(90)
zoIZ
(32)
99
(18)
(o)
5
(5)
2
3
PACULJB.
|0-x.
Sosl*^^(
•5
18527
_5 6
J 4 5 I C
3o703842
0355)
17517IC
(346)
(о)
255in33399
(798)
1222452
(I98)
122
44(166)
74
Greenwich
OivüTime.
1886.z68d-lo6
j
Sept. 26
269-104
I.
Sept. 27
270-461Sept. 28
271-565
Sept. 29
272-170
I.
Sept. 30
273453
Oct. ï
274-415
Oct. 2
275-191
I.
.J2
vя
H, EP
H, EP
H, EP
H, HP
H, EP
H, BP
EP, M
&fe1
'Sa
tO
Чdwfc
19281929
19281928
193001930/1
1930«1930^
1930«1930
1
K•s»-<Sf
g "g1%f o0
0-6320-717
0-943
0-9580-7860-8190-7900-8810-956
0-9330-989
0-9370-9560-9780-870
0-8180-882
0-6700-682
0-9280-8630-902-
iW
a*v
0
:l|g-ч
o276-4103-0
80-1
254-4257-6276-5276-7
78-9ioz'4
99'9107-1
270*2108-9109-5
87-0
1134II 2-6
120-7
II97
2224
I78-4
163-3
HELIOOIIAPHIO
•в
íbgЛ
0
3054•Ui-7
323-7303-I308-I
305-3190-5
181-6
'52-9141-5
281-8142-6137-5151-8
I44-71377
146-3145-1
226-7170-2146-5
Щ
1Â
o
+ 94- 4'4+ 1ГО
-12-7- 54+ 9"2
+ 9'5+ 13-0- 9-8
- 6-7— 15-7
+ 2-5-15-8-17-4+ 5'9
— 14-9-16-3
-47— 14-6
-39-6-52-8-53-9
SPOTS.
II<jrfl
g!чai
j in
43
(7)
o0
(o)
(o)
(o)
85
(13)
4o
(4)
60
(6)
IIH "2O-2-Мч»
44
§1e•<
i813
(36)
52
(7)
(o)
(o)
2638
(64)
289
(37)
369
(45)
FACULTE.
P.
a-•plà'si•"•art Йgi
278(352)
146160
)f '43e
347 .259
(1055)
(o)
5347
(zoo)
77
r '99e
66(342)
(o)
(o)
41
7576
The Groupe of Spots are numbered in the order of their appearance. When, there is no number in the third column it ia to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculse relative to the Spots with which they are associated are indicated by the letters n, я, j/. /, a, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculœ are expressed in millionths of the Sun's visible Hemisphere.
Sept. 21 and 22. Photograph very faint. Facula ill-defined. " Sept. 24. Photograph very faint. Limb hardly visible. Faculté ill-defined.Sept. 28. Photograph over-exposed, Sept. 29. Photograph »lightly over-exposed. Faculto hard to see.Oct. ï and 2, Photograph faint. Faculas ill-defined.Group 1928, Sept. 22-27. Two small epote on Sept. 22 and 23. The group is not seen on Sept. 24. On Sept. 25 a single spot is seen. On Sept. 26 four very small epote
are seen, the last two being measured together. By Sept. 27 only two very small spots remain.Group 1929, Sept. 26. A small spot.Group 1930, Sept. 3o-0ct. 10. Two regular spots, a and b, on Sept. 30. Ъ has disappeared by Oct. 2. a moves rapidly forward in longitude until Oct. 5. It ii
followed by one or two small spots on each day from Oct. 2 to Oct. 6.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN тни YEAR 1886. 6 7
Measures of Positions and Areas of Spots and Faculto upon the Sun's Disk — continued.
GreenwichCivil
Time.
1886.275d'19I
I.
Oct. 3
276-541.
Oct. 4
277-481
Oct. 5
278-273
I.
Oct. 6
279'357
I.
Oct. 7
é
\Л
BP,M
Н,ЕР
Н,ВР
ВР,М
ВР,М
111А
0
<аМИ
193°«1930
i93oa
Я351930«1930
1931i93oa
19301932»193219321932
1930«1932«
|
.9èIs®>э
15II«
0-5460-5970-9180-9370-9500-9750-964
0-3900-4300-879
0-3900-3940-8690-933
0-9500-822
0-8070-4950-4680-4700-7280-7370-7510-7660-882
0-9520-9430-6100-5510-9050-9480-9710-982
"аш
4)
3о »•p
Рч
о
131-2128-7"44
83'994'8
102-2
7.0-1
•JÓ2-81 5-0-4
196-4189-099-895'S
252-9283-8278-5237'1217-22i4'3105-6107-01 06-0107*094'9
z8i'7254-5234-3113-095'974'9
юго105-1
НЕЫОвВАРШС
4s
à
о
474НЗ'б1 10-3102-6
ioi'497-096-7
147-9142-6•94-9
148-9146-1
83-374'2
2ОП
'«74i 84-9156-7148-9Н7'9'
87-286-785-484-370-6
190-5185-8148-4
87-053-545442-940-7
11J
0
-15-1— l6-2-I9-3+ 8-0- 2-5-10-3+ 20-9
-15-4-15-6*- 7-6
— 15-5— 16-4— 5-2- 2-8
-14-0+ 15-0+ 44- 9-8-15-8-16-7— 6-8- 8-1— 7-6- 8-7— 1-3
+ 13-1-12-4
- 7-1- 2-7+ 16-3— 9-1-13-5
SPOTS.
II
ацД-Í
'В*«H03
K «Q•3
17О
(17)
i3о
Оз)i6о
(i6)
2
22О
2
О
О
I
(27)
2412
(36)
II
Si •О *— '
u^
^ ^•S"
' 774
(90
817
(88)
7918
(97)
67868343
(108)
7945
(«24)
FAOÜbHÜ.
О,
Ü>
•S 'S
A«t•í
258o
151146
24(618)
126(126)
133119
(252)
4i1 02100
)ч п(лгf yuf'
J 83(422)
40587
5519331
7*(842)
GroenwioliCivu
Timo.
1886.28od'290
I.
Oct. 8
281-143
I.
Oct. 9
282-456Oct. ID
283-500
Oct. 1 1
284-158. I.
Oct. 12
285-507
Oct. 13
286-463
Oct. 14
сjя
ВР,М
ВР,М
Н,НР
Н,КР
ЕР,М
Н,ЕР
Н,ЕР
11тзаа
Î*tосе
I930O193201932
i93oot
19320
i93°#
19331933
1934
1
|
.9
1э*•§
К8 цIм
l'aQ
0-9240-7400-3870-4400-7950-8920-9600-955
0-9680-8980-7860-8430-2590-8670-9360-9290-949
0-962
o-i 190-124
0-1500-953
0-9000-.867
0-9770-9670-9510-9030-902
i£
•И
•a
l|P.
о
241-7242-8126-0
I3I-I994757
io8'996-7
245-4243-2205-3247-6152-3103-6I I 2 - S
97-1
77'9
252*2
3O-O
52-9
108-899-6
2594265-5
2534261*3269-0258-9243'3
mtUOORAPHIO
Ф
1
f3
о
167-3148-086'985-653-6
344334
152-81197Н7'5
87-035-628-326-521-7
148-2
59457-2
46*2343-2
99-296-0
99'397'995-686-983-3
пэsя
о
+ 23-2-15-2
— ю'9- s*+ 15-6-16-2- 4'5
-21-9— 20-8
-397-15-1
- 8-6-18-6- 4'3+ «34
-I5-3
+ 11-9+ 10-3
+ 3'i- 7'3
- 6-9- 0-9
-14-9- 6-9+ 0-9- 74— 21-0
SPOTS.
Il«iW"§1*й:ц•4 "
l6
3о
(19)
12О
(12)
0
(о)
О
о(о)
0
(о)
(о)
(о)
II
SIo~W t»p &
«íl•í "
65356
(106)
695
(74)
69(69)
918
(27)
4
(4)
(o)
(o)
РАСВЬЛа.
IÕ
J}"£
í?I*4ã•55449C
688492
43(490)
584721бос
55437*
(447)
(o)
(o)
43(43)
61i 82:(нз)
741168182
113(466)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it la to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, », p, /, c, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hemisphere.
Oct. 4. Photograph faint. Faoulro ill-defined. Oct. 5, 10, and n. Faculto ill-donned.Group 1931, Oct. 6. A very small spot.Group 1932, Oct. 6-9. A small spot, n, with a number of very small spots close to it on Oct. 6. л il seen alone on Oct. 7 and 9, but has one very email companion on
Oct. 8. a has increased in size by Oct. 7, but diminishes again on the succeeding days.Group 1933, Oct. ii. Three small spots, two of which are measured together.Group 1934, Oct. ï a. A very small spot.
s i «
68 MEASURES OP POSITIONS AND ABHAS OP SPOTS AND FAOUL^ UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.287d-i49
I.
Oct. 15
288-230
T
Oct. 16
289-130
I.
Oct. 17
290*286
I.
Oct. 1 8
291-253
I.
Oct. 19
292-376
I.
Oct. 20
.
1я
ВР,М
ВР,М
ВР,М
ЕР,М
ВР,М
ВР,М
3
11<£
О
1Í^
19351935
1935'9351935
1935193519351935
19351935
1935
1935
I.аê11
J-siдоз
l'aя /
о-дбз0-8880-868
0-5990-6 isо-88з
0-440-4190-444
0-9350-8310-3190-3200-3460-311
0-9580-9240-9160-9320-3700-3090-8950-937
0-9560-8910-4590-936
0-9490-8740-876
0-6430-849
1
1•н
•а1
il&
о
2594264*1250-6ii8'9115-2100-2
137-0130-9128-1
264-2285-1166-9156-9156-9151-5
286-0256-6248-1235-9213*0205*6
48-8107-0
261-9279-123I-5176-8
284-5288-9296-42457349'8
HELIOGBAPHIC
é
1
Я
о ,
87-676-671-9
3424340>4314-0
343-8341-8339-8
57-244'9
344-53414340-7340-1
474
Зб-535-1
345'3341-2273-5266-3
лк ч
732-6Г 24"О
342-1314-0
i8-o6-76-2
3424324-3
1
я
0
- 8-5- 2-6
-137-II-9— Ю'4- 6-2
— 12-2
— Ю'6— Ю'б
- 3-5+ 15-6-12-6
-II-6
— i3'o— ю'4
+ I6-9— 16*0-17-9— 29*0-12-3-10-7+ 39-0-13-8
- 6-0+ 10-6
-II-4-63-5
+ 154+ 19-1+ 257— iro+61-6
SPOTS.
IlЛ 9ИА
lit•9
2
8
(IO)
8о
13(21)
IO
о0
9('9)
62
(8)
0
(°)
о
(о)
II
Э|us!.
•îtч
2220
(42)
885
66(49)
IOIб7
40(154)
3021
(50
15
('S)
u
(ч)
FACCLJB.
t
°•Я 'SJá
""'S11•<
325615
22
(«5)
(о)
4368
(in)
139Ч7030
3419
(Зоб),
29
71
34(134)
бзlos
30
44(342)
GreenwichOivüTime.
1886.293d"i57
I.
Oct. 21
294-492
Oct. 22
295-I2I
I.
Oct. 23
296-507
Oct. 24
297-130
Oct. 25
298-46
I.
Oct. 26
299-135T'
Oct. 27
îк
EP, M
H,EP
BP, M
H,BP
EP,H
EP,M
H,EP
1
1
1
gСЭ
ОМ'A
1935
1936«
1936«19366
19366
1936«19366
1936«
1936
1S.95Jj
1«si5w
.a 'SQ
0-862
0-8570-8410-7650-9410*934
0-9340-971
0-9670-9550-9270-8970-8810-902
0-9930-9170-9430-929
0-905
0-933
0-8420-8840-783
07030-7610-9000-9480-983
0-5390-5660-921
.»
ï«B£
1
;||
PH
O
287-6283-4269-8249-8287-6295-0
255-6104-9
256-2
324-7252-2304-0263-0
231-374-0477106-2
76-9
75-2744
74-673-6
115-4
72-871-8
lOO'O76-5108-9
68-268-3
109-5
HELIOQKAPHIC
•SS
н
о
355-03547352-9342-6
6-34-6
345-0203-7
343-133б'9335-03314330-6325-1i8542234201-3201-0
1 86*4182-2
186-0i8ri195-9
1857180-9166-9158-9152-4
185-4183-649'S
!'•gло
+ i7;8
+ 44-11-7+ 18-4+ 25-2
-11-4-13-1
— 12-0
+ 53-3
-44+ 32-6- 37-31-5+ 16-5-47-3-134+ 4"o
+ 15-5+ 16-3
+ I5-5+ 16-7— 16-4
+ 154+ 16-8- 6-9
-177
+ 15-6+ I5-9— 19-8
SPOTS.
Il«1g!
!||•ч
(о)
о
(о)
о
(о)
8о
(8)
9о
(9)
7о
(7)
i lо
(и)
II
SI0-=-И.Р
jit•5
(о)
19(19)
62
(62)5533
(88)
5044
(94)
4°7
(47)
393
(42)
FAOUL.B.
10
•S ï»1(5
il•ч
173220
io8Si15
(273)
3860
413(799)
5103930322027
23803112
(1596)
1 ЯJ *
(238)
i 2 2 I C
91
)f I33C
5296124
(405)
181(181)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faoulae relative to the Spots with which they are associated are indicated by the letters n, e, p, /, о, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculao are expressed in millionths of the Sun's visible Hemisphere.
Group 1935, Oct. 15-22. A number of email spot« following each other in an irregular stream. The individual members of the group differ from day to day. Thegroup is not seen on Oct. 21, and only one spot appears on Oct. гг.
Group 1936, Oct. 23-29. Two spots, a and Ъ. Ь has broken up by Oct. 25 into a cluster of small spots which are, however, still measured as one. Only one of thesesmall spots remains by Oct. 26. Only a remains on Oct. 29. h is not seen on Oct. 27, but a is followed on that day by a very small spot.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, ш INDIA, AND IN MAURITIUS, IN THE YEAR 1886.
Measures of Positions and Areas of Spots and Faculte upon the Sun's Disk — continued.
GreenwichCivil
Timo.
1886.30od*i45
I.
Oct. 28
301*469
Oct. 29
302-105I.
Oct. 30
303-180
I.
Oct. 3 1
304443
I.
Nov. ï
305-498
LÍOV. 2
306-397
Nov. 3
.
lAИР,Н
H,EP
H,EP
H,EP
H,EP
H,HP
H,BP
1V
I11o
•8 1oáffc
I936a19366
1937«
1937*19360
I937&
i.gЯ 9
'S
1
sii00
l"8
0-3520-4200-9410-9480-8620-942
0*9410-9250-189
0-968
0-9410-8930-975
0-9480-9190-8300-9570*9550*8520-8040-927
0*9330*9310-780
0-9680-88 1
00
"1œ
&1
,3
1
|l
o
56-657-6
174*1150-1114-4112-4
261-5261-5
4-0
262-3
182-398-1
115-4
281-3289-4251-2202-4191-2196-197-0
109-7
283-2253-6290-3
254-1288-5
НВЫООВАРНЮ
1•3
о
185-5i 8 i * 5190*1152-6147-6136-1
255-1252*6185-1
252*1
168-5100*9
89-5
222*3217*2204*I
I95-9I77-3I72-5
97-785-3
201*7
199-3182*9
194-7182*2
1t-3
0
+ 15-5+ 17-2-64*8— 52*6-i8*3-I9'3
"?4— 6-1+ I5-3
- 6-3
-65-5- S'*— 23-6
+ 12*1
+ T9"5— 13*0-59*2-65*7— 50*8
— 3'i-16-5
+ 13-8-137+ 18*3
-НЧ+ 18*1
SPOTS.
II
ai3-ag
jîî•3
70
(7)
оо4
(4)
0
(о)
(о)
(о)
(о)
(о)
II
jlo-a
ÏÎ.
:j|•5•29
8
(37)
65
(42)
47
(47)
(o)
(o)
(o)
(o)
РАСШЬЛа.
и.
1
•Ч!»»«Q
í!•^139
87122
87(435)
} 94С
(94)
98с
(98)
117274I2O
(Sn)
3343328997996
12922О
(lI27)
87520
юз(7ю)
100
128
(228)
GreenwichCivilTime.
l886.
307'1Ч23
Nov. 4
308*360
I.
Nov. 5
309439
1.
Nov. 6
310-209I.
Nov. 7
311-418
Nov. 8
312-312
I.
Nov. 9
313-166
T
'Nov. ID
.
js
H,EP
H,EP
H,BP
Н,ИР
H,BP
H,BP
H,BP
1M
1•§rt
!>áca
is3
láч•B,«
goo
J-s
0*9650*9230*9410*976
0-9010-8270-8470-8640-9170*923
0-9670-9060-9020-7690*8450-8420-875
0-9350*937
0*8430*9110-956
0-9440-8790*8460-846
0-9250-9080-837
iCO
11•S,!|lРч
o
289*197-7
108-3110-7
281-4246*0108*498*8
112*885*2
281*2
2834249*7
99'4115*8107-0
75-3
246-2118-4
259-1106-9103*1
255-1268-4252-8109-0
267-5256-3243-1
HELIOGBAPHIO
1
и
о
i82*441-039'532*4
1594147-2
39*636-231-8277
160-1149-6146*5
35'331-129423-9
136*6
54
и гоSS' 1 "343-1
112*0
i04*i98*6
347-5
98'995484*1
IJ
о
+ i9'5- 5-6-15*7-19*2
+ i i*9-17*4-13-4- 57-19-2+ 5'9
+ i i * 7+ 137-i 6*6- 4'9-19*4— 12-2
+ 4-6
— 20-8-25-0
- 7-3-13-8-II-4
-12-8+ 0-3-12-6
-14-1
— ri— iro-20-3
SPOTS.
Ilais*я*
и
îlî•ч
(о)
(о)
(о)
(о)
(о)
(о)
(°)
g f e•8«H
MIO1— '
8fc
ïï*2SÖ•ч
(o)
(o)
(o)
(o)
(o)
(o)
(o)
FÁ.OVLJB.
P,
1 _ло
là
и%
no703984
(303)
42269
7334
ю8114
(640)
9671
»7456
1274622
(592)
1 6664
(230)
2S8
48
84
(39°)
163167
33200
(563)181ISO
146(447)
The Groups of Spots are numbered in the order of their appearance. When there ia no number in the third column it is to be understood that there is a Faoul»unaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, t, p, f, в, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faouloo are expressed in millionth^ of the Sun's visible Hemisphere.
Nov. a. Photograph over-exposed. Nov. 3. Photograph over-exposed Paoulse ill-defined.Group 1937, Oct. ag-30. Two small spots, a and b, on Oct. 39. Only Ь is Been on Oot. 30.
/>
з/
г?
Zo
71
IPU
3~?
A/•397
/89-Г
ni-f 2.7
-7 SO
/ 7 /
70 MBASUKBS OF POSITIONS AND ABBAS OF SPOTS AND FAOUL^: UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.
34d'i48т
Nov. 1 1
3IS-332I.
NOV. 12
316-148
I.Nov. 13
317-205
I.
Nov. 14
318-280
I.
Nov. 1 5
319-191
I.
Nov. 1 6
320-462
Nov. 17
321-493Nov. 1 8
SI«
H,EP
H,EP
H,EP
H,BP
H,EP
H,BP
H, M
H,BP
1»
31f°ей1
Й
1938«
19380
1938«19386
1939
19391939
19391939
15
is
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«С «ï
liI?Q
0-8890-9000783
0-5840-874
0-8760-4470-8980-939
0-3200-3380-8360-9470-972
0-913
0-9350-8900-9440-8940-8440-888
0-9620-7730-8740-7440-756
0-5320-542
0*960
"iœ
1«Я
FÏÏ
1
g„'
Ph
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259-3
247-7
tIO'3
I2O-O136-4
283-3I32-Oi iro100-4
161-5!54'9
10-575-6957
195-0189-0
97-0256-5285-8265-4
96-2
189-697'2
116-7100-4
98-6
99'2104-3
286-1
HBLIOGBAPHIC
-
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8о'479-8
329-8
3317314-0
S3'!332-3291-0283*4
332-4329"9321-9267-3202'5
351-7344'3202'9
33727-121-3
2Ó2-I
338-82Ó2-I
255-2265-0263-8
263-9263-8
355-0
1í
о
— 8-0— 18'4-137
-14-5-37'3
+ 13-0-147-17-4- 8-8
-14-9-15-1+ 577+ I4-5- 4'9
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—69-1- 4-0-21-8
- 6-0- 4-8
— 2-8- 5-6
+ 6-1
SPOTS.
Il«1Sï•н02
elo«ч
(о)
I
(I)2
(2)
О
О
(о)
о
(о)
оо
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0
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(о)
II
310-2-W.P
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^ *
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7
(7)
9
(9)
53
(8)
ï
(O
32
(5)
66
(12)
(o)
ГАООЬЛЗ.
í5J •£*
láol
«1B -Í
•Ч
92
8772
(250
39(39)
46
121
02
(229)
66
Зб334
(436)
49149
1383548
219(638)
65i68,72
(305)
(о)
280(280)
Greenwich
Civil
Time.
1886.322d'l64
Ti.
Nov. 19
323-119
I.
Nov. 20
324-244т
Nov. г ï
325-282I.
Nov. 22
326-341
Nov. 23
327-251
I.
Nov. 24
328-352
I.
Nov. 2 5
J
. 1яH,EP
H,EP
H,EP
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0-9650-8770-909
0-9520-880
0-8470-8050-8290-904
0-8940-8020-919
0-9200-791
0-9210-9460-981
0-8820-8400-8590-920
0-9710-9510-8 1 60-9450-9250-930
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1' §á •
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255-8251-6108-8
253-5225-3217-6110-773-9
109-8
282-8114-064-5
229-76r6
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77-7
280-9261-1117-377-3
211-5174-976-1
144-2101-589-2
HELIO&RAPHIO
à
I•Ua>S
о
346'7332-4209-7
3 3 I - I311-7303-1209-3205-3197-9
308-2195-2180-2
291-3182-8
151-8150-3i39'3
267-5262-6150-7I39-7
254-2177-4137-7I34-0124-81234
4•1а
о
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+ 12-3-17-8+ 24-1
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- 9'5-25-9+ 12-4
+ 10-3- 6-7-22-4+ I2-3
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-49-2
— I О1 1+ 1-2
SPOTS.
II«1(4^
*1Ю*1p•5
(o)
(o)
(o)
(o)
(o)
(o)
(o)
II
§10-2.и«•gM
x
i
(о)
(о)
(о)
(о)
(о)
(о)
(о)
FACULTE.
P.
0н-Г*
là*iil<
10899
216(423)
2822
52
us8881
(386)
616197
(219)
2748
(75)
12424
108(256)
9°116176121
(503)
5341
75137133104
(543)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, ï, p, f, o, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and Faculas are expressed in millionths of the Sun's visible Hemisphere.
Nov. 17. Photograph over-exposed. Spot» and Faculso ill-defined.Group 1938, Nov. 12-14. •*• wry small spot, a. A second, Ъ, is seen near it on Nov. 14.Group 1939, Nov. 15-17. A very small »pot on Nov. 15. Two very small spots on Nov. 16 and 17.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, ш INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 71
Measures of Positions and Areas of Spots and Faculte upon the Sun's Disk — continued.
GreenwichCivilTimo.
1886.329"' 348
тI.
Nov. 26
330-171I.
Nov. 27
ÍÍ 1*34.6
I.Nov. 28
332'357т1.
Nov. 29
333429Nov. 30
334-320I.
Dec. ï
335-322
I.
Dec. 2
336-152
j
Dec. 3
337-150I.
Dec. 4
в
1
H,ÏÏP
Н,ЕР
Н,ЕР
Н,М
Н,ЕР
Н,ЕР
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1
1Д
1
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1940
i.9S
|§isi9ю•3<н
И
0-3040-8950-896
0-825
0-9530-8500-841
0-949
о-8950-830
0-9470-8920-943о-88о0-9330-952
0-8910-8400-942
0-8750-978
i&
4и •l -aÍ -5
u
246-4102-487-7
106-5
254-7273-5261-9
253-0
250-480-2
180-9174-5171-799-993-0
108-7
248-893-096-4
9 5 - 391-9
m-UOOUAl-Hlü
1
0
194-6115-81 15-0
1 13-6
21O-O1967
1954
1954
I74-6
57-3
IO2-I
89-2
78-I
38-6
31-0
28-7
I49-8
31-818-7
14-9357-9
•SP
о
- 5-8— 1O-6
+ 2-6
— I2'9
-4-3+ 34- 6-3
-15-8
-17-2+ 8-5
-704—61-9-68-3- 8-5- 2-7-17-6
-18-7- 2-3-5'9
-'4-6- 1-8
SPOTS.
II•*!"Sл l
ota?
ü-jS
ï
СО
(o)
(o)
(o)
(o)
(o)
(o)
(o)
(o)
II
31oias*is 8,si
111
•6
(6)
(o)
(o)
(o)
(o)
Co)
(o)
(o)
(o)
FACULTE.
о,g
láilil-з
4396(239)
96(96)
(о)
4920
99(168)
83(83)
4046
(86)
105404945
109138
(486)
544130
(125)
99136
(235)
GreenwichCivilTime.
1886.338Ü-I77
I.Dec. 5
339-240I.
Dec. 6
340-170I.
Dec. 7
341457Dec. 8
342-193M.
Dec. 9
343-502
Dec. io
344-399
M.Dec. ii
345485
Dec. 12
346-212
I.
Dec. 13
J5
Sя
Н,ИР
НР,Н
н,м
ЕР,М
Н,ЕР
ЕР,М
Н,ВР
1
!ïа,
О
603'Л
194.1019416
1941(*1941I94I&
1942i94irî
194119416
194219411941«194119410
|
.9è
1"^î-3il8 1Í00
l-ss
0-8990-856
0-963
0-913
0-8730-912
0-7640-7900-822
0-560o'èoi0-6380-6750-858
0-9730-4220-4910-4860-5580-5660-990
i<я
1•H
•tи
b
o
265-991-6
76-2
75-1
68-768-5
65-865-465-9
64*2
58-358-660-094-3
179-154-145747-650-852-394-0
HELIOQKAPHIC
1
O
125-834
305-2
3044
293-3288-1
293-2290-9287-6
294-6293-4290-8287-7
3I3-5295-7294-5294-1289-0288-0234-6
4s3
o
- 3-6— i*3
+ 13-3
+ 134
+ 18-1+ 19-3
+ 177+ 18-7+ 19-2
+ 134+ 177+ 18-7+ 19-0— 4-1
-707+ 134+ 19-1+ 18-2+ 19-8+ 194- 4'1
SPOTS.
Il•n
К g
3}*O -A
s1£4"°
(o)
(o)
(o)
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9
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30
13
(«9)
IIS"e
Ist-g °V
§lá
(о)
(о)
(о)
(о)
(о)
12i8
(30)
28i l47
(86)
2028
5
(104)
154
12
351
(85)
FACUL.iE.
во
M||
i1
12882
(210)
(о)
(о)
70
(70)
29I
(290
i IOOC
(too)
]V 2190) (219)
229(229)
118
843(961)
The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there is a Faoulaunaccompanied by a Spot. The positions _of Faoulœ relative to the Spots with which they are associated are indicated by the letters », *, p, f, r, denotingrespectively north, eouth, preceding, following, concentric.
The Areas of Spots and Faculte are expressed in millionth^ of the Sun's visible Hemisphere.
t
Deo. 12. Faoulee ill-defined. Group 1940. Nov. зб. Л very small spot.Group 1941. Deo. 10-31. Two small spots, a and b, on Deo, 10, other spots appear between them on the succeeding days, and the group has become by Deo. 15 a stream of
spots, of which a and 6, the first and last, are the largest. Both a and Ь undergo frequent changea in shape and sise.Group 1943. Deo. 12-13. A small spot.
MïïASUBES OP POSITIONS AND ABEA8 OF SPOTS AND FACULTE UPON THE SUN'S DISK
Measures of Positions and Areas of Spots and Faculee upon the Sun's Disk — continued.
GreenwichCivilTime.
1886.347a<296
I.
Dec. 14
348-362
I.
Dec. 15
349-282
I.
Dec. 1 6
3SO-334
I.
Dec. 17
35I-552
f1EP,M
H,EP
H,EP
H,EP
EP,M
1
313
-
15 _
á™
1941019411941I94I&
1941019411941194119410
1941019411941^
1941019411941194119416
1941019411941
1
a
iSê
®'-3
1*
illQ
0-9390-3620-3710-3830-419
0-9480-9070-3400-2990-3510-3320-3570-951
0-9650-9300-4500-4190-4110-857
0-7540-9010-8860-6130-6020-5840-590
0-5530-937
0-8850-7980-7980-782
•"i03
S
•Bv
%
f|h
0
200-3
23-525-326-432-4
196-3185-8344-8344-8351-6352-9
0-6105-5
2OO-8189-5314-43237330-4108-1
289-9192-8171-4300-2304-6301-4307-0310796-2
286-8292-3289-6296-1
TÎELIOQBAPHIC
.
1
Iо
346-5293-6292-3291-6288-2
329-2300-7
2934292-6291*129°-5287-82 1 6-6
•
330-6
299'3
295'3290-8
288-1
217-9
308-6
287-6
245'3
295-3293-3
293-I29J-8288-2
I92-6
306-52964
296-7
2937
CÎ
1
1
о
— Ó2'4
+ 18-24-18-4+ 18-9+ 19-6
-66-2
— 15-5
4-I7-9
+ 15-54-I9-0
4-lS-O
4-I9-6
-I5-I
— 65-2
-67-5
4-16-9
+ 18-3+ I9-S-l6-2
4-13-8-62-6— 62-44-IÓ-64-18-6+ 16-4+ I9-54-197- 6-3
4-14-04-16-6
+ 4-54-19-0
SPOTS.
ë ë<н<й
•"яM !
Еэа02
•g -A
•§"
2
20
17(21)
Чоо0
26
(4°)
12
О
22
(34)
2О
Z
50
20
(47)
23оо
II
SIM
•gM-£g!o
12
82
67
(89)
572
312
125
099)
838
136
(227)
1 06Ч12
2119
(253)
105ui3
FACULTE.
fО
•s?SO
ilr114
(114)
l i o98
205'
(413)
15271
88(311)
122
133
34
54(343)
126I\ 27IC
j
GreenwichCivilTime.
1886.
35 l d '552
Dec. 1 8
352-250
I.
Dec. 19
353-182
I.
Dec. 20
354-I98
I.
Dec. 2i
355-238M.
Dec. 22
356-514
Dec. 23
357-548
.сиiя
EP,M
H,EP
H,EP
H, M
EP,M
H,EP,
1
f•o§£í618 1oco
194119411941^
194101941194 ii1941
I94IO1941194119411941^
I94lZ»1941I94I
1943
19431943194319431944019441944
1945'9451943
i-S.a3A 0
fll
8 "ÍвозÍS 'S
0-7740-7500732
0-9440-8840-8400-8230-791
0-9600-9490-9320-9320-915
0-8250-9790-9680-957
0-922
0-7840-807
0-8350-8530-9430-9630-982
0-2580-2780-629
1
1
•а-<
.!.*.•s »iH
o
294-0296-2299-6
285-6289-4292-7295-7296-0
287-1289-5289-7288-4291-8
267-2289-6290-4291-0
i oo- 1
1ОГО10Г2
IO2-2
102-9984
loo-o99-8
341-0345'2
HELIOGKAPHIC
1Еш
J
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293'5290-8288-4
306-1296-7291-0288-5285-2
296-7294-2291-2291-1288-2
266-4287-7284-7282-1
130-2
129-2127-0124-3122-4IIO'O
юбч101-4
171-6170-9128-4
1s
0
4-17-2+ 18-1+ 20-0
+ Ч'14-i6-2+ 17-9+ 19-84-19-6
+ I5-9+ 17-84-17-6•fio-o+ 19-0
- 344-18-74- 19-2+ Í94
— lo-i
— lO'O-10-3-11-4— I 2 - J- 8-3— IO-2— IO-O
4-1 1-8+ 13-2— IO-I
SPOTS.
II
«1g a.
ЕЭ"!°i?SSf i
oo
22
(45)
360
20i
(57)
4oioo
(5)
o2
O
(2)
O
(o)
3790
3ioo
(50)
oo0
IlSIo~
^ S.•s" .и ч аj la
20ч67(231)
101
460
7(172)
6747171547
093)
302532
(87)
7
(7)
15336612
252
136.
(452)
56
44
FACULTE.
1о•9 "£SO
'Sл 9
I1
(397)
224
)
j(742)
11
í 6Н6
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163]}• 398«?)
(56i)
I30C
03°)
'
» 1 22C
• 205C
(327)
The Groups of Spots are numbered in the order of their appearance. When there ie no number in the third column it is to be understood that thore is a Faoulaunaccompanied by a Spot. The positions of Faculaa relative to the Spots with which they are associated are indicated by the letters n, t, p, f, e, denotingrespectively north, south, preceding, following, concentric.
The Areas of Spots and FacuUe are expressed in millionths of the Sun'e visible Hemisphere.
Dec. 18 and 23. Photograph faint. Faculee ill-defined.Group 1943) Dec- 22-29. -A very small spot on Deo. 22. Four spots following each other in a straight line on Dec. 23. The group has further increased in size by
Dec. 24, when it is measured in three clusters. Only two of these clusters remain by Deo. 25, and only one by Deo. 28.Group 1944, 1886, Deo. 23-1887, Jan. 3. A large regular spot, a, followed by a stream of smaller spots, a has suffered a great change in shape by Deo. 28, and has
become an elongated spot with several distinct nuclei. The smaller spots have disappeared by Deo. 29, and a has broken up bv Deo. 30, principally into tworegalar spote, b and c. Only b remains by Jan. 2. Group 1945, Deo. 24-26. A number of very small spots irregularly distributed.
ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE TEAR 1886. 73
Measures of Positions and Areas of Spots and Faculte upon the Sun's Disk — concluded.
GreenwichCivil
Time.
1886.
357d"548
Dec. 24
358-502
Dec. 25
35948o
M.
Dec. 26
360-156L
в
iА
Н,ЕР
Н,ЕР
Н,ЕР
Л,ЕР
1h
3
"íS
íо^HОЮ
1943'9431944«194419441944
194519451945194319431944«194419441944
1945'945
1945194319431944«194419441944
19431943
1S.g1Is&••&с^siдю
.я 'Sи
0-6560-6870-8410-8720-8890-913
0-3620-3950-3520-4500-535о-69з0-7290-759о'Йоз0-912
0-517o'5oi0-5060-4830-3100-4000-565o-6i i0-6320-7020-837
0-1490-228
ito
1•в«
. ? ..s -Sя ц8 -ч&
о
юз'б104- 5
98-1ion997
юо'4
308-531 1-63134ю8'7ю8'9
98-5
io i '3loo- 5Ю1'з9б>4
299'7297-0301>4299Чi i7'o115-0
99-99»'3
I O I - 8Ю2'3
95'9
1547138-6
HlSLIOGKApHIO
CJ
1u*-5
0
126-4124-1109-7106-3104-21ОГО
170-9170-7169-3128-6123-21 1 0-6107-9105-210Г2
98-5
172-7172-3171-6170-7129-2123-7III -4108-0106-7101-4
88-7
128-9123-8
41
0
— 10-6-II-6- 8-1— 10-8- 97— 10-4
+ 10-7+ 12-8
+ 12-7— 10-4— I2-O
- 7-6- 9'9- 9'5-10-5-T5-8
+ 12-6
+ IO-9
+ I3-0
+ II-4-10-5
— 12-0
- 7'7— 7'1
- 94— 10-4- 6-3
-10-3-12-4
SPOTS.
Il«ITIи ЛR ?
-'S £
•ч
0
I I25
о0
0
(36)
оооо4
49ооо
(53)
ï2
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о48
500
4о
(69)
2
7
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а!GO
«'s •»"«1
14ICI
2734221
41
(547)
554
2453
313386828
(538)
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874
15 .4i
33»7
1409
(572)
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26(26)
1 13(ИЗ)
GreenwichCivilTime.
1886.Збоа-15б
Dec. 27
361-229
M.
Dec. 28
362-477
Dec. 29
363-159
I.
Doc. 30
364-522
Dec. 31
Eë
Я
H, M
H,EP
H,HP
H,HP
1ь
1"аS
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19441944«1944194419441944
19431944«194419441946
19431944«»9441944194419441946
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1944&19441944°1946
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11S».l'a
0-3610-3710-4400-4710-4870-531
0-8270*1900-1420-2450-3050-979
0-4200-1980-149O-I2O
0-085
O-1I7
0-908
0-362
0-337
0-3IO
0-835
0-629
0-599
0-577
0-636
"в
£|
•Hл
î.•J-g'i-чfi
о
97'9104-9105-2«034107-0104-8
285-3208-1130-21 19-0114-5106-7
244-9242-624-3202-5203-7185-7106-9
25472537254-1107-8
261-1261-5261-3112-7
HELIOGRAPH to
•о
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•3
о
in-7i i i - S107-3105-1104-5101-3
172-4124-2I I2-O
I05-8
102-04O-O
124-8I I 2 - I
юб-8Ю4'б103-91O2-6
37-2
II3-6
1I2-O
ПО'4
37'2
113-6111-5109-9
37-3
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bl
0
- 5-2- 7-9- 9-0- 8-6-10-5— 10-0
+ 10-9-12-4- 8-0- 9'5— IO'O— 16-9
-12-9- 8-1- 9'9
- 7'3- 9-6
- 8-3- 8-2- 77-16-5
- 8-2- 77- 7-6-16-7
SPOTS.
Il<)гэ
g!
í.«n?
«ч
o89
443o
(109)
2
380
O
o(40)
2
30
O
ooo
12
(44)
23o
1815
(56)
180
o12
(30)
IIHtj
O-2-
*!e -f If
•<
73537643284
(577)
22
3OI
81255°
(479)
9250
5338
IO2
(380)
125
7100
108(340)
100
72581
(213)
FACULTE.
n.
C5
--AUn•1a-i
(o)
83
(83)
900(90)
165/(165)
(o)
The Groups of Spots aro numbered in tho order of their appearance. When there ia no number in tho third column it is to bo understood tint there is a Fnoulaunaooompaiuod by a Spot. Tho positions of Fuoultu relative to tho Spots witli which they are associated aro indicated by tho letters n, », ]>, /, r, denotingrespectively north, south, procodin;,', following, concentric.
Tho Areas of Spots and Fauultu are expressed in milliouths of tho Sun's visible Hemisphere.
Deo. 25. Photograph faint. Spots and Faculto lll-deflned. Doc. 29 and 31. Photograph faint. Faouliu ill-defined.Group 1946, i8»6, Deo. 28-1887, Jan. 8. A regular spot.
GBEENWIOH OBSEBVATIONS, 1880.
Blank page retained for pagination
ROYAL OBSERVATORY, GREENWICH.
LEDGERSOP
AREAS AND POSITIONS OF SPOT GROUPS
UPON THE SUN'S DISK,
DEDUCED FROM THE MEASUREMENT
OP THB
SOLAR PHOTOGRAPHS,
FOE EACH DAY IN THE YEAR
1886.
6 К 2
76 AREAS AND HELIOGBAPHIC POSITIONS OF SPOT GKOUPS ON THE SUN'S DISK DEDUCED FKOM PHOTOGBAPHÖ
AREAS and HELIOGRAPHIC POSITIONS of the SPOT GROUPS on the SUN'S DISK DEDUCED FOR EACH DAY from theMEASUREMENTS of the PHOTOGRAPHS taken at the ROYAL OBSERVATORY, GREENWICH, at DEHRA DUN ININDIA, and at the ROYAL ALFRED OBSERVATORY, MAURITIUS, in the YEAR 1886.
NOTE.—The Greenwich Civil Tjme at which the photograph was taken is expressed by the month, day of the month(civil reckoning), and decimal of a day, reckoned from Greenwich Mean Midnight.
The Projected Area of the Umbrae and Whole Spots is the area as it is measured on the photograph, uncorrected forthe effect of foreshortening, and expressed in millionths of the Sun's apparent disk.
The Column " Longitude from Central Meridian " gives the Mean heliographic longitude of the group, reckoned fromthe meridian passing through the centre of the Sun's disk at the moment of observation ; longitudes west of the centrebeing reckoned as positive.
Dates for which no numbers are given indicate days for which no photographic record is at present available.
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitude
of Group.
Longitudefrom
CentralMeridian.
Date.GreenwichCivil Timo.
ProjectedAieaof
Umbra. WholoSpot.
Area forGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitude
of Group.
Longitudefrom
CentralMeridian.
Group 1819, Group 1821.
1885. aDec. 25-130
26-1432744328-14429-51630-12731-150
1886.Jan. i-z i o
2-424
Means
99
3524255345
Ч13
4532
251
228225
3°9258
14268
8S
201212
28
26
10
13
3921
144
119
146
98
70
101
243-4
244-0
242-8
244-9
243-8
2444
244-4
247-2
244-48
+++++
7'9
7'i7-07'°7'57-06-8
7'37-6
-53-3-39*4-27-4— 12-1
+ 4'9+'12-6+ 26-9
+ 42-0+ 597
1886. a
Jan. 2-4243'4-24054926'2l67-1488-2169-196
10-1551Г21О
12-23I
13-266
14-524
I5-257
Means
92I 12
123
202
124
118
147
123
8762
8о
133
629832
IO2O
95786884868048135080
12
76
74no57617975646418
60
4°3
61756549 !550490445453410353361170loo
416
106-4
104-6104-9104-4103-9104-5104-7103-2104-8105-3105-9105-2105-1
104-84
- 13'°
14-2H'3i3'914-014-2i3'514-414-1H'3
-8п
- 59'3— 42-2- 33'i-21-4- 6-7+ 6-4+ 17-5+ ЗЗ'
1
+ 47-0+ 6Г2
+ 77-1+ 86-5
Group 1820.Group 1822.
1885.Dec. 31-150
1886.Jan. raio
2-4243-4-240549*6-2167-148
Means ...
910
12
7IO
2
15286
58322013
10
8
745i
143
16864
321710
7'
63
141-0
141-5141-4
141-6141-6141-21417
141-43
+ 8-9+ 9'°
+ 9'5+ 9'5+ 9-6+ 94
+ 9'3°
Jan. 4'24°
-76-5
— Ó2-O— 46"!
-22-3
- 5'5+ 37+ 16-4
22 I I 1-6 - 52-3
Group 1823.
Jan. 7-1488-2i69-196
10-155Means
135оо
5953
63оо
29
28
74
«7
126-5126-9126-0
126-00
- 6-1- 6-1- 6-1- 6-6
- 6-23
- 0-7+15-3+ 28-6+ 4°'3
TAKEN AT THB ROYAL OBSHBVATOBY, GBHENWICH, IN INDIA, AND IN MAURITIUS, IN THE YiEAB 1886.
ABBAS and HELIOGBAPHIO POSITIONS of SPOT GBOUPS on the SUN'S DISK.— continued.
Duto.
GreenwichCivil Time,
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
MeanLongitude
of Group.
Mean
Latitudeof Group.
Longitude
fromCentral
Meridian.
Group 1824.
1886. ,1Jan. 7448
8-2169-196
10-155
Means . . .
0
ооо
...
II
176
7
...
о0
о0
о
7IO
34
6
0
95-894498-297-6
96-50
+ 12-6
+ 134+ il'9+ 117
+ 12-40
0
-29'5- 16-8— o-i+ 1 1-9
...
Group 1825.
Jan. 8-2 1 6 о 4 о 4 54'5 - 97 -567
Group 1826.
Jan. 8-2169-196
• 10-155I I - 2 I O
I2'231
I3-266
14-524
I5-257
I6-45I
I 7-54I
Means
IO
59114112
104
88355550
5
...
473665327377147474« S431311137
...
257°9572
5<46i82828
3
44
40645344848039538220822218195
327
32-131-932-532433'i3*'933433433432-1
32-72
- 4-1- 4-0- 3'9- 4-0- 3-6- 3-8- 3'3- 34- 37- 3'5
- 373
-79-1-66-4- 53-2- 39'3-25-2- 11-8+ 5'3+ I4'8+ 3°'6+ 43-8
...
Group 1827.
Jan. ii -2 IQ12-23113-166
Means
320IO
...
118'S1
76
...
2
'917
»3
8o138122
ИЗ
П4'8115-4117-2
115-80
— I I - 2-10-3-II-8
— 1Г1О
+ 43'i+ 57-1+ 7*'5
...
Dato.Grooivwioh
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
MeanLongitude
of Group.
MeanLatitude
of Group.
Longitude
fromCentral
Meridian.
Group 1828.
1886. d
Jan. 12-23113-26614-52415-25716-451
17-541
18-19-50820-51421-142
Means
281 0643173174in
*7Чо
...
181668
1242140712991428
5'7175
27
...
17557789
100
77
3439о
54
107 •35°025
722
741956
65053°i6i
538
0
26-428-53°731-03i ' i30-1
29730-627-2
29-48
о
- 97-i 0-4— IO-Z— IO-I— 10-2
- 9'9
— Ю'О- 9-8-10-5
— 10-09
о
-31-9— l6'2+ 2-6
+ 12-4+ 28-3+ 41-8
+ 67-2
+ 81-1+ 86-2
...
Group 1829.
Jan. 13-26614-52415-25716-45117-5411 8-19-50820-51421-14222*213
Moans
о6
4342г 6
о452
...
442332543*6207
47
?648
...
Jan. 16-451
i7'541
Means
ОО
...
21
S
...
0IO
32241502
42
IO
9°224189195ni
2422
42
7
IOO
329-933°7332-8333-2333-5337-1337-533843394
334>69
+ 94+ 8-7+ 94+ 8-6+ 8-8
+ 9-1+ 9'8+ 94+ 9'6
+ 9-I7
-74-8- 574-45'8— 29-6— 14-8
+ H'6+ 28-0+ 37-1+ Sí'5
...
Group 1830.
о0
о
43S
24
286-4287-9
287-15
- 2-7— 2'2
- 245
-76-4— 60-4
...
Group 1831.
Jan. i7'54i о IO 0 Ч 279-3 - 5'8 — 69-0
78 ABBAS AND HELIOGRAPHIC POSITIONS OF SPOT GROUPS ON THE SUN'S DISK DEDUCED FROM PHOTOGRAPHS
.AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS 011 the SUN'S DISK — continued.
Date.Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
MeanLatitude
of Group.
Longitude
fromCentral
Meridian.
Group 1832.
1886. u
Jan. 23-239 о 20
Jan. 30-2633i'23i
Feb. 1-4802-2893-2804'5б75-1486-4797*2398-4599*449
10-15011-151
Means ...
о20
3267
81
453930Ч22
9оо
...
HO
'59
2544034°34193602OI
172101
5410
7
...
О Il
о
281-9о
- 8-3
0
+ 8-6
Group 1833.
о21
234i4424
23
i6
,1IOо0
17
196167
1822462192132091091 0278681318
140
106-31 06- 1
ï об- 1107-1107-4108-4109-4108-3107-5109-7113-8106-2104-5
10775
-147— 14'8
-15-0-15-6-15-0-154-iS-3— 14-6-15-1-14-9— I3'5-15-0-14-9
-14-91
-747— 62-0
-45-6- 34*°— 2O-6
- 27+ 6-0+ 22-4+ 31-7
+ 49*8+ 67-0+ 68-5+ 80-0
...
Group 1834.
Feb. 4-567 о
Feb. 4-5675-1486-4797-2398-4599*449
10-15011-15112-18013-17014-18615-25016-186
Means
23
5566
182128'34167
Т160136675624
...
26 о 13 115-4 - 7*0 •+ 4*3
Group 1835.
2293485677578208618929578176844A5
2OZ
"5
...
457552
120
?i69
83778
0987526653
72
4414764494984534414464864544383333"259
422
35'334-234'<534*535*o35*335*835*335-536-135436-136-3
35-34
— io-о- 9*4- 9-8- 9*5— 9-5- 9*5- 9'5- 9*3- 9*4- 9*4- 9*5- 9*3- 94
- 9'5°
-75-8— 69-2-5i*3-4i'3
- "'S
~ ri+ 10-8+ 24-6+ 38'3+ 5*'°+ 657+ 78-1
...
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Moan
Latitudeof Group.
Longitudefrom
Central
Meridian.
Group 1836.
1886. „Feb. 7-Z39
8-4599*449
10-15011-151
Means ...
Feb. 8-4599*449
10-150
Means
121812
40
...
75892920
9
...
о7о
...
12
7221
...
6îго
. 5
4Á4*ï6IIб
24
Group 1837.
оiiо
4'
IO
9950
53
0
56-458-859-660-760-9
59-28
о
+ 7-0+ 7'o+ 6-9+ 6-6+ 6-9
+ 6-88
e
- 194— I-I+ 12-8
+ 23-0+ 364
...
116-311 6'2
IIO'I
Il6'20
- 6-6- 6-5- 7*5
- 6-87
Group 1838.
Feb. 8-4599*449
10-150
Means
Hоо
...
5726
6о
...
8о0
3
3'1330
Ч
35'1
35437*2
35*9°
- 4'i- 4*3- 4*4
- 4*27
+ 56-4+ 69-4+ 784
...
-24-8- 11-4- °*5
...
Group 1839.
Feb. 11-151 5 15 3 IO 6у7 - 9'2 + 43-2
Group 1840.
Feb. 11-15112-18013-17014-18615-25016-18617-251
Means
оо
гб18о83
...
849
182
"5597137
...
оо
H12
0
IO10
7
425
10375559<120
68
22'625-0
20-2
24-527-8zí526-4
2543
- 6-0- 6-1- 5*3- 5*6- 5*o"6'1- 5*6
- 573
- '*9-t- 14-1+ 28-4+ 40-1+ 574+ 67-3+ 82-3
...
TAKEN AT THE ROYAL OBSBRVATOHY, GREENWICH, IN INDIA, AND IN MAUBITIUS, IN THH YEAR 1886. 79
ABBAS and HBLIOQBAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitude
of Group.
Longitudefrom
CentralMeridian.
ïGroup 1841.
1886. dFeb. 11-151
I2'l8o
13-170
Means
о0
о
...
10
Зб5
...
О
О
о
о
12
29
3
Ч
0
317-5317-9319-1
318-16
e
— I I - 2
- 9-8- 9'7
— 10-23
о
— 67-0- 53-0-38-7
...
Group 1842.
Feb. 17-25118-18119-27720-16221-112
22-525
23-I57
Means ...
2
3843о0
...
!938394512
17
15
...
44732
О
О
3
454732
30788
25
225-1224-8224*6224-4224-3224-7224-9224-69
-I5-7-16-3-17-1
!74-17-6-17-8-17-8
— 17-10
-79'°— Ó7'o-52-8
41 3- 28-8- 9'9- »'S
...
Group 1843.
Feb. 20-16221-112
22-52523-15724-42925-200
Means ...
»423
О
оо0
...
193104
86ISо3
...
712
0
О
оо
3
100
5446
90
3
35
25Г2
252-3252-6
256-6
256-4
253-82
-НЧ-H'5-i4'i-13-0
-J2-3
-13-66
-Н'5- 0-8+ I8-0+ 30-2
+ 57-0
...
Group 1844.
Feb. 25-20026-42827-47228-196
Mar. 1-2072-45434354'473
Means
оI Iо7
52
0
0
...
328i4484
648
uЧ
...
0
7о4
гïо0
2
35572544
3i
í9
26
1357138-2140-1140-5
138'1142-3142-3142-7
139-99
- 9-1- 9'3- 9'3- 8-8
- 9'9- 94- 9-5- 9-6
- 9'3<5
-637-44'9-29'3-194
- 8-64-12-0
+ 25-1+34-9
...
Date.GreenwichCivil Time.
Pi ejectedArea of
Umbra, WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitude
of Group.
Longitudefrom
CentralMeridian.
Group 1845.
1886. ц
Feb. 26-428 I is I 8
0
187-7
a
+ 5-6
о
+ 4'6
Group 1846.
Feb. 28-196
Mar. 1-2072-4543435
Means ...
0
160
о
...
32
441617
...
о
IO
0
0
3
17
2612
17
18
1747
174-2178-5179-0
176-60
-I4-3
-14-213 V
-J34
-13-95
+ I4'8
+ 27'54-48-24-61-8
...
Group 1847.
Fob. 28-196
Mar. ï -2072-45434354-4735-2176-2267-5078-4309-448
10-41911-465
Means ...
8
669595
120
139f677iSi18
5
...
138
7701280131712851165959705654436288136
...
Feb. 28-196
Mar. 1-2072-454343544735-2176-2267-507
Moans
0
1921
22
6
27
5о
...
22
82I Об
no787122
H
...
Ч
727i57647947364337178
46
283
8769618087036034893843963>8276210
526
82-s
8i'982-282-782-383-684-283-884-484-484-683-9
83-38
— 16'7
-16-8-17-2-I7-3
-174-I7-3-17-2-17-3— 17-0— 17-0-17-2
— 17-16
-774
-64-8—48-1-34'5
21 3
— IO-I
+ 374-20-2
4-33'Q+ 46-S+ 594-f-72'5
...
Group 1848.
о
27
17Ч
3Ч
3о
10
80
120
867*4437n
7
57
77'3
77-677777'376-977778-078-3
77-60
- 5'2
- 5-4— 6-0- 6-0- 5'9- 5-8- 5'9- S'«
- 575
-82-6
—69-1-52-6-ЗУ9-26-7— i6-o- 2-5+ 47
...
80 ABBAS AND HELIOGRAPHIC POSITIONS OP SPOT GROUPS ON тнв SUN'S DISK DEDUCED PROM PHOTOGRAPHS
AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
Mean
Longitude
of Group.
Mean
Latitude
of Group.
Longitudefrom
Central
Meridian.
Group 1849.
1886. á 'Mar. 2-454
343544735-2176-2267-5078-430
Means
1617II6l998844
...
75195382479822541
449
...
886
36759985
45
3899
205284602618890
391
о
123'Q
124*6
I24-0
I25-8
I27-3
I27-5
126-7
125-69
о
- i'5- i-з- 1-6— 1-2— 1-2- 0-7- 1-5
- Г29
о
- 6-4+ 74+ 20-4
+ 3244-46-8+ 63-9+ 75'3
...
Group 1850.
Mar. 3-43544735-2176-226
Means ...
3о6ï
...
24272713
...
2О
4I
z
Ч161712
Ч
Group 1851.
Mar. 3-4354473
'Í2I26'22б
7-507
8-4309-448
10-41911-46512-207
i3'56914-219
Means
,125383028201824
Ч2
...
Sí961491942132792312271571324434
...
2O1821
24
l6
14IO
91412
53
Ч
127
10812612611714411611891
934344
104
I30-2
130-3
I3I-8
I35'3
131-90
+ 10-2
+ 9'5+ 9'5+ 9'o
+ 9'55
+ 13'о+ 2б'7
+ 38-I+ 54'8
...
39-9
39'540-340-641-041-141-442-042-142-442742-8
41-32
- 34- 3'i- 2-7— 2'2
- 27
- 2-8- 2-6
- 2'7
- 27
- VS— 2"2
- 2-3
- 2-66
-77-3— 04' ï- 534-39'9— 22'6
— ю'з+ 3-5+ i6-8+ 307+ 4°'9+ S9'o+ 677
...
Group 1852.*
Mar. 3-43544735-2176-2267-5078-4309-448
824
3iSo52
S*46
62164228316338378374
2432
Z935292723
19422O
2I4
22O
1 92
196186
35434735435735735'935'9
- 8-8- 8-8- 8-4- 8-1- 8-6- 8-6- 8-4
- 8i-8— 68-9-58-3-44-8-27-9-IS'S— 2-O
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra, WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group.
y
Longitude
fromCentral
Meridian.
•Group 1852 — continued.
1886. üMar. 10-419
11-40512-20713-56914-21915-229
Means
5°3775384412
...
368576480H'246101
...
262О
48314521
3°
188
317307274244182
ггб
о
Зб-о35'936-135'5
.35-536-2
35-68
о
- 8-3- 9'3- 9'2- 9-0- 9-0- 8-9
- 8-72
о
+ ю-8+ 24'5+ 34-6+ 5i'8+ 60-4+ 74'S
...
Group 1853.
Mar. 4-4735-2176-2267-5078-4309-448
10-41911-46512-207i3'56914-21915-22916-327
Means
12
45123
1 68197129178153178142201
Ю4
56
...
744738ig
II43139714.6913291383"75969798601296
...
3262
112
110
112
67
88789992
149Ю9из
94
1967oi7б2
7бз79976s66o705653629592632603
651
23-823422-722-322-6
22'2
22-5
22-6
22-7
23-0
23-0 '
23'5
234
22*90
- 5fo- 4-8- 4-6- 5'2- 5'5- 5-2- 5'3- 5'3- 5'3- 5-0- 5-0- S'i- 4'3
- 5-05
-79'8-70>3-57-8-4 I >3- 28-8- i5'7- 27+ "'Z
+ 21-2
+ 39-3
+ 47'9+ 6l-8
+ ?6-I
...
Group 1854.
Mar. 16-32717-44018-20219-46520-159
Means ..:.
Mar. 18-20219-46520-15921-19622-205
Means ...
1819
S8
...
0
о42О
...
321031794574
...
3иЧ8
21
12
1768
1426o
171
92
331-23337334'°3347334-8
333-68
— lO'l
- 9'3- 9'5- 8-8- 8-9
- 9-32
+ 23'9+ 41-1+ 5 I - 5+ 68-7+ 78-0
...
Group 1855.
6i iЧ27
4
...
0
О
2
I
0
I
99
i ii6
2
9
2 I I - I
213-2
209'6
2 I I ' 7
2IO-7
2II-26
- 12-3- 12-4- n -8- 12-6
— I2'3
— 12-28
-714-52-8-47'z-31-4- 19-1
...
TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IK INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 81
AREAS and HBLIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholoSpot.
MeanLongitude
of Group.
MeanLatitude
of Group.
Longitudefrom
CentralMeridian.
Group 1856.
1886. fl
Маг. 1 8-20219-46520-15921-19022-20523-14124-4662|'59426-42627'Иб28-18829-42130-23»
Means
8304662
97164
976270784222
9
/
65
21533539°592594633557516428281H3
57
...
35394645578850334048332728
44
268275329280
3543193-25294295262221I76
172
275
0
200-22ООЧ
• 198-5199-2199-31 99- 1199-3199-7
. 199-82OO-OI99-8I99-6ZOO' 2
199-60
0
+ 5-0+ 4'9+ 5-2+ 5-3+ 5-6+ 5'5+ 54+ 5-3+ 5'5+ 5'5+ S't+ 5-6+ 5'5
+ 5-36
-82-3-б5'9-58-3-43-9-30-5-18-3- 0-7+ Ч!5+ 25'6
+ 34'9+ 48-9+ 65-0+ 7б'3
...
Group 1857.
Mar. 1946520-159
Means ....
0о
...
52H
...
оо
о
3612
24
3II-43I2-9
3 I 2 - I 5
- 13-0- 12-8
— 12-90
+'45'4+ 56-1
...
Group 1858.
Mar. 20-15921-19622-20523-14124-46625-594
Means ...
45°
*!3<582
...
97210
184I87
5£26
...
2
2424216
3
13
51IDO
98I I O
423°
73
244-3244-3146-7
247-5249-0248-9
246-78
+ 2-5+ 2-2+ 1-8+ 1-7+ i-i+ o-i
+ 1-57
- 12-5+ 1-2+ 1б-9+ З0"1
+ 49'°+ 637
...
Group 1859.
Mar. 23-14124-466
.25-59426*42627-11628-18829-42130-23231-418
О
32
7963
из8o94736o
70
415
5597337416684885*5438-
о38.64
f644i473835
2035°544 !481420348244273264
I37-2
1344
1354134-2
134-8
I35-3135-8ISO'SI37-1
— -о- -6— -i
— -2
— -о
— *2
— 8о-2-б5'6- 50-1— 40-0- 3°'3-IS-6+ Г2+ 12-6
+ 28-7
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
Mean
Longitude
of Group.
Mean
Latitudeof Group.
Longitudefrom
Central
Meridian.
Group 1859 — continued.
1886. d
Apr. 1-38624323-567.4-102
Means • . .
3l361523
...
331234178158
...
253222
49
38
225205
249341
323
о
137-6136-71357136-3
135-90
— Г2- 1-4- 1-8- 1-8
- 1-30
о
+ 42-0+ S4'9+ 69-0+ 76-6
...
Group 1860.
Mar. 26-42627-11628-18829-42130-23231-418
Apr. 1-38624323-5674-1025-446
Means . . .
Mar. 29-42130-23231-418
Apr. 1-3862432S'S6?4-1025-4466-4197-2868-5449-417
Means ...
о238i5i
12743
132123123129
J3
...
22118483929
IOO8
939
102713521024796205
...
0
19S1
276558
7378
Ч120
3°
57
22
953°34995i8487
566849808755453
487
113-2ilz-8114-1I14-9I I S ' 3116-5
117-2117-4117-0118-0I20-O
Il6-04
-15-8-16-6-16-8-167-16-8-17-0
-17-1-17-2-174
17 о-1б-з
-1679
— 6ro-52-3- 36-8- I9-7- 8-6+ 8-1
+ 2Гб
+ SS'«+ So-3+ 5»-3+ 78-1
...
Group 1 86 1.
о8о
12IO
444322
î963
8IO
...
133461
2181193603733684094744489
...
012
О
46
2322
13i?4o
712
13
274748
H366
185190210
2343°31 35.101
141
57-3
S3'7
57'2
55-856-954-7554SS-856-9S5'956-254'3
55-84
ï г8-11-9-П-4
-II-9-II-5— u-8-11-7-11-7-11-4-п-в-II-8-12-3
-"75
77 3— 70-2-51-2
-39-8- 24'9— I I'D
- 4'3+ 13-9+ 27-8+ 38-»+ 55-1+ 647
...
GREENWICH OBSBUVATIONS, 1886. S L
82 AREAS AND HELIOGEAPHIC POSITIONS OP SPOT GROUPS ON THE SUN'S DISK DEDUCED FROM PHOTOGRAPHS
AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.
Date.GreenwichCivil Time.
ProjectedArea of
Umbra WholeSpot.
Area f orGroup.
Umbra WholeSpot.
MeanLongitudeof Group.
MeanLatitudeof Group.
Longitudefrom
CentralMeridian.
Group 1862.
1886. d
Mar. 30-23231-418
Apr. 1-386
Means
0о
О
...
145
9
...
0
о
о
0
184
6
9
о
56-I577
54'9
56-23
- 8-7- 9'o
- 8-8
- 8-83
о
-6у8- 5°7
-407
...
Group 1863.
Mar. 31*418
Apr. 1-386.2-4323'5674-1025-4466-4197-286
Means ...
0
о0
о
'9ооо
...
13
Ч3048861687
о
ооо
10
ооо
I
!9
Ч21
28
46
844
18
37-8
37-637-838-238-337'937-137-2
3774
- 10-7
— I I'D-u-9— II-6-11-9— 1ГО— 10-7- 11-9
- n'34
— 70-6
— 58-0-44'°-28-5-21-4
- 4'°+ 8-0+ !9'5
...
Group 1864.
Mar. 31*418
Apr. 1-3862-4323-5674-1025-4466-4197-2868-5449-417
10-4791 1-627iî'437
Means
о
444479
IOI112п8z i g1059373376
...
57
1702864304765H538518481420341
19573
...
о
654°
и58596о58
I9
6о48Ч
49
217
248256
283
288200
2702б3
208
207
279251176
2S6
25-5
25425-625-825-826-426-327-027-027-728-028-028-1
26-66
- 4-6
- 4'9- 5'3- 5'3- 54- 5'5
~ 5'1- 5'6- 5'9- 5-8- 5'5- 5'5- 57
- 5'4z
— 82'9
- 70-2-56-2-40-9- 33'9- i 5 - 5- 2-8+ 9'3+ 25'9+ 38-1+ 524+ 67-7+ 78-5
...
Group 1865.
Apr. 2-4323-5674-1025-4466-4197-286
Means ...
оо9ооо
...
20287i24Ч
3
...
оо5о0о
I
IO164320
188
19
89-890-891-692-994'596-2
92-63
+ 7'5+ 7'3+ 74+ 7'6+ 8-0+ 8-1
+ 7-6S
+ 8-0+ 24-1+ 3i'9+ 51-0+ 65-4+ 78-5
...
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
Mean
Latitudeof Group.
Longitudefrom
CentralMeridian.
Group 1866.
1886. „Apr. 7-286
8-544
Means ...
Apr. 10-47911-627
Means
0I
...
о0
...
1720
...
0I
, I
9II
IO
Group 1867.
2647
...
О0
0
ч20
23
о
23'9247
24-30
о
+ 154+ Ч'5
+ Ч-95
о
+ 6-2
+ 23-6
...
293-2294-2
293-70
-24'3— 25'О
-24-65
-42'4— 2Ó-I
...
Group 1868.
Apr. 15-55716-389
Means
оо
...
iS8
...
оо
о
84
6
243-2244-3
243-75
- 8-7- 8-8
- 8-75
-254-I3'2
...
«
Group 1869.
Apr. 15-55716-38917-10218-10319-39120-57821-15922-4302345124-49925-582,26-564
Means
2O
ll3629!92333181921
О
О
...
ï об146102
222
213
i»?22O
I II
121
78
27
25
...
гб1727i8IO12
17IO
13» 1 7
Оо
Ч
4i134121
13б112
95Xí3627866
I462
96
201-4201-420Г2
2OI-2
201-4
20Г92O2-I
2О2'32О2Ч
203-320Гб
20ГЗ
20Г77
+ 4'7+ 4-2+ 44+ 44+ 4-3+ 4'°+ 4-3+ 4-2+ 4'2+ 3-8+ 4-2+ 4-3
+ 4-25
— 67-2
-56-1
-46-9-33-6
— l6'4
- О'З
+ '7-6+ 24-6+ 37-8+ 53-0+ 65-6+ 78-1
...
Group 1870.
Apr. 16-38917-102
Means ...
75
...
3352...
43
4
1728
23
264-3265-0
264-65
+ 117+ I2-I
+ 11-90
+ 6-8+ 16-9
...
TAKEN AT THB ROYAL OBSBRVATOEY, GKBBNWIOH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 83
AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitude
of Group.
Longitude
from
Central
Meridian.
Group 1871.
1886. d
Apr. 19-39120-57821-15922-430Z345I
Means
418
23Ч0
...
3492
122
5612
...
616
178о
9
Group
'Apr. 19-39120-57821-15922-43023451
24-4992PU226-56427-38828-52429-51130-389
May 1-433
Means
421
3825
15352O
1312
518Ч
о
...
58
214
151214
171
172
171
150
47325'413291
• 51
...
1224
îi9
1810
773
1720
0
Ч
528l
91
336
53
о
147-8i48-7148-9150-0150-4
14946
0
+ s -9+ 9-1+ 9'3+ 8-2+ 7'9
+ 8-68
0
—70-0-53-5-45-6-277-13-9
...
1872.
165247'37136
9589867726
220370413
148
170
i37'9138-11384139-2139-1i39'31394!397i39'913974°'3141-8
i38-.9
139-36
- -6~~ '3- 0-9
- 3— 2-O
- 7'5'3
- 7- '5
- 0-5
- 1-38
-79'9—64-1-56-1-38-7-25-2— I I-O
+ 34+ 16-5+ 27-7+42-5+ 56-2+ 69-3
+ 80-2
...
Group 1873.
Apr. 20-57821-15922-430Z34SI24-499
Means
о2
30I
...
u26673825
...
0
43оI
2
25
g25Ч
33
126-4124-5124-1125-7125-3
125-20
+ IO-I
+ I2-I+ 12-0
+ 9'9+ 10-0
+ 10-82
-75-8—70-0-53-6-38-6— 25-0
...
Group 1874.
Apr. 20-57821-15922-43023-45124-49925-582
187i649l96
101
128249503691653783
67
13762725954
463480495jo8398425
118-9118-7118-3118-0117-8117-5
-17-6-i8-i— 18-4-18-8
j g . j-18-8
-83-3--75-8-594-46-3
3Z 5-18-5
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra.WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitude
of Group.
Mean
Latitude
of Group.
Longitude
from
CentralMeridian.
Group 1874 — continued.
1886. üApr. 26-564
27-38828-52429-51130-389.
May 1-4332-4063418
Means
98130!34
ë310
...
764774677634548
333257
95
...
Sl\43
694038
64
395399373388393
320
3<5
Зб5
4!3
о
i i7 '9117-9117-4116-9117-2
116-81 16-4115-9
117-54
-18-3-18-5— 18-4-18-1-18-1
— 18-0-18-1— 18-0
-18-26
0
- 5'3+ 57+ 2O-2+ 32-8+ 447
+ 58-1+ 70-6+ 83-3
...
Group 1875.
Apr. 23-451 о 13 о 6 163-0 - 6-5 - i'3
Group 1876.
Apr. 27-38828-52429-51130-389
May 1-4332-40634i844325-5536-4547-4628-1859-524
Means
о172829
52
Si4552
4548
II0
...
+3c136228285
35°35734132930922417914647
...
о21
23
!9
ч20
23
2726
32
Ч29
о
21
43164185188
196186172
1711791461511б2
13"
1б7
31-331-53I-93I-7
32-232-332-6.32732-732432-532-8 '31-6
32-17
- 6-6- 6-5- 6-6— 6-6
- 6-8- 6-6- 6-s- 6-7- 6-6-6-4— 6'2
-6-5— 6-0
- 6-51
— 8o'9-657- 52-2— 40-8
-26-5- I3-5
O'O
+ 13-5+ 28-4+ 40-0+ 53-5+ 63-3+ 79-8
...
Group 1877.
Apr. 28-52429-51130-389
Means
ооо
...
2910
25
...
ОО0
о
Ч12
12
55'955-2
55-9
55-67
- 3'3
= Î5- 3-70
-4i'3— 28-9- 16-6
...
в La
84 ABBAS AND HELIOGBAPHIC POSITIONS OF SPOT GKOUPS ON THE Sun's DISK DEDUCED РЖШ PHOTOGBAPHS
AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.
Date.Greenwich
Civil Time.
ProjectedArea of
Umbra. "WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitude
of Group.
Mean
Latitude
of Group.
Longitude
fromCentral
Meridian.
Group 1878.
1886. d
Apr. 29-51130-389
May 1-4332-4063-41844325-5536-454
Means ...
128
Si135'59136
58So
...
96
H5
463147214171099
841456
...
64
26
75iO4112
73u6
65
5°73
238819910888
983884
боб
о
68-968-5
69-56977°'370-2
68-9
67-7
69-21
о
- I I - 3- II-4
-114— II-6~ l l ' ï— 11-6— I 1-2- 1 1'6
- "45
о
- 15-2- 4-0
+ 10-8+ 23'9+ 377+ 51-0+ 64-6+ 75-3
...
•
Group 1879.
May 1-433 о 23 0 21 0-7 - "'S — 58"°
Group 1880.
May 2-40634184-4325-5536-4547-4628-1859-524
10-46011-265I2'l6o
»З-ЧЗ
Means
13719383
287iS i .193
739i
ro437
3
...
344746
nu1600198720271794H351066674254
72
...
3i878o
£416379
IOO40577738
5
68
809942944
104811251054925778651495258I3Í
763
328-9327-1326-9320-5328-1328-6328-833°'5331-93344337-23374
33°'53
+ 8-7+ 8-4+ 8-6+ 8-6+ 87+ 8-4+ 8-5+ 8-4+ 9-0+ 8-8+ 87+ 8-3
+ 8-59
-76-9-65-5- 52-3-37-8- 24-3— io'4- 0-7+ 187+ 324-f- 45'6+ 60-3+ 73-6
...
Group 1 88 1.
May 12-16013-145
Means
о8
...
ë...
o4
2
1833
26
276-9277'3
277-10
— 22-8— 23'0
— 224)0
ï O-O
+ I3-5
...
Dato.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group.
Longitudefrom
CentralMeridian.
Group 1882.
1886. й
May 13-14514-091
Means
о12
...
9573
...
012
6
7380
77
о
313-2ЗЧ'З
3I37S
0
- 5-8- 5'6
- 5-70
о
+ 494+ Ó2'9
...
Group 1883.
May 20-097 II 24 7 15 205'3 — ÏO'2 + 33'5
Group 1884.
May 21-40322-19423-67824-09825-57326-44927-52628-39329-5293°'48331-544
June 1-5242-417
Means
22
3792
1241441211731351179877
5i25
...
992674785295776ii708618560502389
21793
...
645373898163887067
is67
6663
70
2873863803773273203603^1323333337
282235
328
74-374'674-174-073'974-274-074-374'374-474'4
74'S74-0
74-23
— iro— I0'9— Ю'4— 10-6— 10-6— I0'7- 10-7— 10-7— 10-6— Ю'6— 10-6
- 10-5— Ю'4
— 10-64
— 8о-з-б9'6-50-5-45-0-•5-6- 13-6+ 0-5+ 12-1
+ 27'2
+ 39'9+ 54-0
+ 67-0+ 78'4
...
Group 1885.
May 22-19423-67824*098
Means
0
I618
...
IO
58"5
...
оIO2313
757
138
67
1837182-81837
183-40
+ 10-8+ 10-6
•f ю-б
+ 10-67
+ 39'5+ 58-г+ 647
"'
TAKBN AT THE ROYAL OBSERVATORY, GRBHNWICH, IN INDIA, AND IN MAURITIUS, IN THB YBAR 1886. 85
AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.
Date.GreenwichCivil Time.
i
ProjectedArea of
Umbra WholeSpot.
Area forGroup.
Umbra WholeSpot.
MeanLongitudeof Group.
MeanLatitudeof Group.
Longitudefrom
CentralMeridian.
Group 1886.
1886. „May 24-098
Z5-57326-44927-52628-39329-52930-4833i a544
Means ...
0969
131684
...
I ISiS«70б£5б3222
...
0I I
67842
5
5б6o444£з<529i6u
37
о
34-234-834'734-834'935-035-135-3
34-85
0
-5'9-5-8
-*+— 6-2
-6-0
-5-8-54-5'3
-S-85
D
- 84-8
-647
- 534
-38-7
-27-3
— I2-I
+ 0-6+ H'9
...
Group 1887.
May 29-52930483
Means ...
о4
...
27128
...
О2
I
1876
47
5'55-0
5'25
+ 11-4+ II-2
+ II-30
-4гб-29'5
...
Group 1888.
May 304833I-544
June 1-524
Means
12
46
H
72200
73
...
II67
45
41
70319
241
210
90-89Г2
88-6
9О-2О
- 12-5- 12-6
- 12-8
— I2-63
+ 5б'3+ 70-8
+ 8п
...
Group 1889.
May 31-544
June 1-5242-417
Means ...
о
80
...
36
*413
...
i
5о
2
20
1510
Ч
4°Ч
41-742-2
41-43
+ 1 4-0
+ 4-3+ 14-0
+ 14-10
+ 2О-О
+ 34-2+ 46-6
...
' Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot
MeanLongitudeof Group.
ï
MeanLatitudeof Group.
Longitudefrom
CentralMeridian.
Group 1890.
1886. „June 2-417
3-089.4-38254736-5727-4298-402
Means . . .
320
. 49
40120
...
74176128
"К2Об
96
79
...
2
IO2
527IOo
8
4091
67
б51347993
8i
э
338-4337'9340-4338-0339'2340-4340-6
339-27
о
+ IO-I
+ IO-I
+ 9'8+ 10-8+ 10-6
+ 10-3+ lO'I
•f 10-26
о
- 17-2
- 8-8+ Ю'7+ 22-7+ 38-5+ 514+ 64-2
...
Group 1891.
June 3-0894-38254736-57274298-4029-420
10-30111-40212-383
Means
6
98
»97179207177163119
5418
...
45541
10481232
144012599H6i 3
339по
...
459
10594
in10443I057661
83
35325558641770
242
03°534475377
509
297-8299-8301-9302-1
302-3303-5304-1304-5304-9305-0
302-59
- 14-4- 14-7- 14-9- 15-2- 154- Чч- 147— 14-4- 14-1- Ч'З
- H72
-48-9-29'9
- 134+ «Ч+ 13-0+ 27-1+ 41-2+ 53-2+ 68-1+ 81-2
...
Group 1892.
June 4-38254736-572
Means
ооо
...
85812
...
oo0
o
5S'i8
25
7-8ю-з12-3
ю- 13
- I3-3- 12-8
- 12-3
— 12-80
+ 38ч+ 55-0+ 71-6
...
Group 1893.
June 6-57274298-402
Means
0
оо
...
2428
23
...
oo0
0
>522
24
2О
337-3339-0338-0
338-ю
- S'o-4'9-4'7
— 4-86
+ 36-6+ 49'7+ бгб
...
86 AREAS AND HELIOGRAPHIC POSITIONS OF SPOT GROUPS ON THE SUN'S DISK DEDUCED PROM PHOTOGRAPHS
AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.
Date.Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitude
of Group.
Mean
Latitude
of Group.
Longitude
fromCentral
Meridian.
Gronp 1894.
1886. „June 6-572 0 8 О 5
0
ЗЗЗ'оft
о
+ 5-1
0
+ 32-3
Group 1895.
June 9-42010-301
Means
О0
...
u8
...
ОО
0
16
7
12
194-6194-2
1944°
+ 5-1+ 5-1.
+ S'io
- 68-3- 57-1
...
Group 1896.
June 16-46017-50018-16419-42920-36621-19622-54923-38524-39325-391
26-417
Means
II1927
172O
2928
1822
Ч
5
...
6884
127
190i8817316145
7<5<16
...
IS1922
II
II
Ч
15IO
14IO
5
Ч
ИЗ82
I O21181059i8582
•484317
81
98-298-398-198-197'998-097'898-498-098-198-1
98-09
— 14-6- Ч'9- 15-0- Ч"7-14-7— 14-6- 15-0- 15-0- I5-3- I5-5- 157
— 15-00
-71-6-57-8-49'2- 324— 2O-2
- 9'1+ 8-7+ 2O-2
+ 33-z+ 46-6
+ 6o- 1
•••
Group 1897.
June 17-50018-16419-42920-36621-19622-54923-38524-39325-39126-41727-48428-398
Means
о27
453°3537!9
131720
8о
...
821362572782762702501972031449719
...
оSi4222
21
19IO
79
137о
17
2962532402OI
16843129IO2
113
92
7921
"53
74'573774-274-174-674-274-574'274-073'973-773-6
74-10
-II-6-II-6-11-3-11-7— I I'D
-II-6
-11-7
-II-7
-II-8— 12-0
-II-9
-12-4
— 11-69
— 81-6-73-6-56-3-44-0-32-5-14-9- 37+ '9'4+ 22-5+ 35-9+ 49'9+ 61-9
...
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitude
of Group.
Longitude
from
Central
Meridian.
Group 1898.
1886. d
June 22-54923-38524-393
Means
931
8
...
124177
93
...
6
2510
Ч
78138li i
109
0
126-4127-8130-1
128-10
+ 8-7+ 8-8+ 8-6
+ 8-70
0
+ 37-3+ 49'б+ 65'3
...
Group 1899.
June 20-36621-196
. 22-54923-385
Means
о0
о2
...
17о
IO
27
...
о0
оI
I
34о7
17
Ч
42'5
42'743-2
42-8o
-3'5
-З-i-З'З
-З-Зо
-75-6
-4б"4-З5'о
..-.
Group 1900.
June 27-48428-398
Means
June 27-48428-39,829-40630'393
July 1-4132-3913'3994-40454076-4027-5008-5189-420
Means
2
2
...
92no
...
II
I
6i62
62
3437345-0
344-35
+ II-0
+ I I - I
+ 11-05
—40-1— 26-7
...
Group 1901.
о35548i
1291234513111769794222
...
71245446811
IOOO918883792600512442275133...
о52
5i58
7969
777°67
I5
6551
47
56
244364417581
614510468426344332366ЗЗ 1
288
407
ЗОЗ-З302-9303-2ЗОЗЧ
302-5302-3302-0301-7301*1301-4301-2301-3300-9
302-09
-15-1-14-9-15-0
-I5-5
— l6'O
-15-9-15-8-15-8-15-4-4-5-14-9-4'9-4'7
-15-34
— 8о'5-68-8-55'2—42*0
-29'3-IÓ-6
- 3'5+ 94+ 22-2
+ 35-5+49'9+ б3'5+ 751!
...
TAKEN AT THE ROYAL OBSEEVATOEY, QEEENWIOH, IN INDIA, AND IN MAUEITIUS, IN THE YEAE 1886.
AEEAS and HELIOGEAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitude
of Group.
Moan
Latitude
of Group.
Longitude
fromCentral
Meridian.
Group 1902.
1886. d
June28'398.29-40630-393
July 1-4132-3913-3994-404
Means
18
23
13II
15о
...
52
7793
84954°25
...
718
17
868о
9
837769
525221
12
52
о
Зоо'З299'5299-7
299-2299-0298-9298-5
299-30
+ I8-5+ I8-6+ I8-6
+ i8'7+ i8'4+ I8-2
+ I8-8
+ 18-54
-71-4-58-9
-45'7
-32-6-19-9- 6-6+ 6-2
...
Group 1903.
June 29-40630-393
July 1-413• 2-391
3-3994-40454076-4027-5008-5189-420
Means
5Ч
30
61323IIоо0
...
100
'37
10486
100
85121
l62
I56l
5
...
713
2
0
47
137ооо
5
44130
76
IIil95
I 12
506
76
291-5291-3
290-7291-0291-1291-4286-4287-4288-1285-3284-1
288-94
-i9'9— го-o
— 20'5
— 21-0
— 214
-19-1-19-2-19-4-19-4
»9'3
-19-96
-66-9-54-1
-4П27'9
-144- 0-9+ 7-5+ 2Г5+ 36-8+ 47-5+ 58-3
...
Group 1904.
July 1 3-4724-389
Means
0
о
...
12
66
...
оо
0
855
32
2U-8
211-7
211-75
— lo-i— lO'I
— lO'IO
+ 39'5+ 51-5
...
Group 1905.
July 14-389 4 15 2 9 186-2 -12-4 + 2б'О
Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group.
f > V
Longitude
fromCentral
Meridian.
Group 1906.
1886. d
July 15-46616-38717-12818-55719-20020-40321-42122-40823-21724-40425-19826-388
Means ...
о8
зб114117205102
i8S
1148136
7
...
20
105225713682911950
1016738624325
85...
о
93°72
65107
85103706437Ч
55
42121
194443386474495564449486325>77
346
о
70-970-57I-I71-972'773-374-174-375475'£75-676-4
7347
о
— Ю'2
- 9'9- 94- 9'3- 9-0- 9-2- 9'1- 94- 8-8- 9'3
~ 9 <- 9-6
- 9'37
о
-75-1-6з-2-52-8- 33'2-23'9- 7'3+ 7-0+ 20'3
+ S2'!+ 47-8+ 58-4+ 75'°
...
Group 1907.
July 16-38717-128
Means
оо
...
712
...
оо
о
;i15
62-262-1
62-15
— 18'9-18-8
-18-85
-71-5-6i-8
...
Group 1908.
July 21-42122-40823-21724-40425-19826-3882749228-43329-44830-50831-505
Means
8158
1929363i3920IS13
...
62
102
юзI4I
« S 320422О
205170
117
78
...
13Ч6
ni6181621
1312
Ч
Ч
999<768383
103112
ИЗ108
9490
96
355-535б'4356-3356-5356-5356-7356-8357-0357-3357-3357-3
356-69
- 2-6— 2-7
2-8- З'О- 3'2- 3-2- 3'5- 3-2- 3'2- 3-1- 3'5
-71-6-57-6
Т/ и
- 3I-I— 20'7 '
- 47+ ю-о+ 22-6
+ Зб'4+ 50-4+ 63-6
...
Group 1909.
July 24-40425-198
Means
0
о
...
66
22
...
оо
0
3912
26
356-6358-3
35745
+ 74+ 74
+ 7'40
- 31-0— i8'9
...
88 ABBAS AND HELIOGRAPHIC POSITIONS OF SPOT GROUPS ON THE SUN'S DISK DEDUCED FBOM PHOTOGRAPHS
AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.
Date.Greenwich.Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitudeof Group.
Longitudefrom
CentralMeridian.
Group 1910.
1886. d
July 25-19826-38827-49228-43329-44830-50831-505
Aug. 1-4962-2323-S844'3c>55-426
Means ...
72459433°4843
27«S25187
...
67loi249292274261248
199185IOO
11753
...
I6
2г8172623
15Ч201813
22
1 60182196188156139132
113114
8111897
140
о
300-9300-1299'7299'9300-3300-6300-9
300-7300-9300-7301-0300-7
300-53
о
-I3-I-I3-I-13-5-13-2
-I3-I— I3'2
-I3-2
— 13-6
-I3-3
-134-I3-3
-134
-I3-28
о
-76-3-61-3
-47-1-34-5— 2О-6
- 6-3+ 7-2
+ 2О-О
+ 3°'о+ 477+ 57'5+ 72-0
Group 1911.
July 26-38827-4922843329-44830-508
Means
2
1887о
...
83112
452813
...
I
9440
4
485823Ч8
30
332-63357336-8338-03384
336-30
- 0-7
O'O
+ I-I+ 1-7+ 2-1
+ 0-84
- 28-8— 1Г1
+ 2'4
+ I7-I+ 31-5
•••
Group 1912.
July 26-38827-49228-43329-44830-5083i-505
Aug. 1-4964-2323-5844-3055-426
Means ...
721
52
483466
3374!7
90
...
6523037648950138i
349378109433i
...
8IS33261733
184413IO
0
20
73.76236208
258196
189221
834452
i63
297-6298-0299-0299-3299-6300-5
299-9300-2301-3302-7302-1
300-02
+ 16-9+ 17-3+ 16-9+ 16-8+ 16-6+ 16-6
+ 16-5+ 16-7+ 16-5+ 17-0+ 16-8
+ 1678
-бз'8-48-8-354— 21-6
+ 6-8
+ I9"2
+ 29-3+ 48-3+ 59-2+ 734
...
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitudeof Group.
Longitudefrom
CentralMeridian.
Group 1913.
1886. jAug. 2-232
3-5844-3055-4266-5897-4058-4149-576
10-36411-40012-407
Means
о0
172О
52
3729I IЧ10
о
...
30зб
112
109
285
3231 661049i5428
...
о0
IO
IO
2619178
13Ч0
1 1
30246688
146i689б748i7293
85
Group 1914.
Aug. 3-5844-3055-426
Means
4174
...
274325
...
312
2
6
22
30
H
22
о
212-6
2IO'9
2134
2I5-3
2I5-3
2I5-32I7-2
2I7-5217-6
2l6'7
216-8
215-33
о
- 57- 57- 54- 4'9- 5'5- 54- 4'7- 4-8- 5-0- 5'3- 54
- S-25
0
-58-3-42-1- зо-i- 134+ 2-1
+ 12-8+ 28-1
+ 437+ 54'2+ 67-1+ 80-5
•••
• '
2OO-O
200-5
200-8
200-43
+ 8-6+ 8-4+ 8-4
+ 8-47
- 53-0-43-0-27-9
...
Group 1915.
Aug. 1 1 -40012-4071344514-228I5-33516-39317-46618-41119-24020-406
Means
H29351822
26
23
2312
2
...
6l146167177152152131
f6o21
...
2528
2512
12
1312
1382
15
128
43121
I I I
83
7969553817
84
77-578-979-078-7
• 78-878-879-279-879-979-979-05
- 8-6- 8-7- 8-8- 9'4- 9'5-9-8- 9-6- 9-6- 9-7.- 9-6
- 9-33
- 72-1- 574-437-33-6- 1 8-8
А ' Я4 ö
+ 97+ 22-8
+ 33-9
+ 49'3
...
Group 1916.
Aug. 16-393 О IO О IO 142-8 + 154 + 59'2
TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 89
AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group,
Longitude
fromCentral
Meridian.
Group 1917.
1886. ц
Aug. 20-406 0 8 0 6о
344-3
о
+ I-I0
-4б'3
Group 1918.
AUg.,23'50224-49425-228
Means ...
0оо
...
4
l...
Оо0
о
664
5
283-5283-2282-2
282-97
— 14-0-14-1-14-9
-i4'33
-66-2
- 534-447
...
Group 1919.
Aug. 26-38927-57528-41429-641
Means
372
4о
...
23318791
22
...
2бI
2О
7
165из
5212
86
274-3274-6275-1276-7
275-18
— 18-8-19-1— 19-0— 18-9
-18-95
- 37'3-21-3
- 97+ 8-1
...
Group 1920.
Aug. 30-46631-405
Sept. 1-4412-4313-3374-4655-5076-4407-4968-3989-468
10-398
Means
12
24
52
4^
5<5603644
Si23
5
...
59155
419408433476378.343349230in
53
...
!923
39293°30'925233029
13
2б
93150
304245234239194192229188нзН5
196
185-3185-7
185-2185-3185-8187-2189-6191-5192-8193-1I93-5194-0
189-08
+ II-8+ U-8
+ I I - 8+ I I-8+ 12-2+ I 2 - I
+ 12-7+ I3'2
+ 134+ 12-6
+ 12-3+ 12-8
+ 12-38
-72'4-59'S
-46-4- ЗЗ'З-20-7- 4'5+ 1 1 -6+ 25-9+ 41-1+ 53-3+ 67-8+ 80-7
...
Group 1921.
Sept. 3-3374-465
Means
о0
...
"719
...
о0
о
1913
i6
144-8HS'S
145*15
- 8-5- 9-2
- 8-85
-61-7— 46-2
...
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
Мщт
Longitudeof Group.
Mean
Latitudeof Group.
Longitudefrom
Central
Meridian.
Group 1922.
1886. dSept. 7-496
8-3989-468
Means ...
5оо
...
3153IO
...
3оо
I
1734
8
2O
о
1744174-017*7
17370
о
— I 1-2
-IPS-II-4
-11-37
u
+ 227+ 34-2+ 47-0
...
Group 1923.
Sept. 9-46810-39811-50312-339I3-396
14-12715-29316-58517-42018-47819-11720-31521-442
Means
о24
41
493944424635484735
3
...
919028733732232933732625723224218845
...'
о32
343322
23
24
24
1930Цзб6
24
S*
255
239228
184172
170
168H214617619290
169
42'344-245-045-045-245-044' 544-445-044'544' 544-144-1
4445
+ 12'3+ I2%7+ 13-0+ 12-8
+ 12-6
+ I 2'4+ 12-8
+ 13-1+ 12-6
+ I3-0
+ 134+ I3-3+ 12-3
+ 12-79
-834— 69-1-53-8-4*7- 28-6- I9'2
- 4'2+ 12-7+ 244+ 37-8+ 46-3+ 6i-8+ 76-6
...
Group 1924.
Sept. 10-39811-50312-33913-39614-1274-293
Means
0
75
1325
7
...
2768
128
1 8714063
...
0
43
' 7134
5
183969987536
56
72-578-777-270-s72-573-6
74-17
— 1Г1- 9-0- 9-7— I2-I
- 117— 11-2
— I0'8o
— 40-8— ZO'I- 10-5- 3-3+ 8-3+ 24-9
...
Group 1925.
Sept. 10*39811-50312-33913-39614-127IS'293
Means
оооо2
1б
...
t0
6o33
109
...
0
о0
о18
2
174о
30
«ï22
68-367-9
68-1б?'971-9
68-82
- 0-4
- 0-3
-"0-8- 0-8
O'O
- 0-46
-45-0- 30-9
- 57+ 37+ гз-2
...
GREENWICH OBSERVATIONS, 1880. 5 M
90 ABBAS AND HELIOGHAPHIC POSITIONS OP SPOT GROUPS ON тнв SUN'S DISK DEDUCED FROM PHOTOGRAPHS
AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S- DISK — continued.
, Date.
Greenwich
Civil Time.
ProjectedArea of
Umbra WholeSpot.
Area forGroup.
Umbra WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group.
Longitudefrom
Central
Meridian.
Group 1926.
1886. „Sept. 13-396
14-127
Ч-29316-5851742018-47819-11720-315
Means ...
9333712
33183913
...
691 08148103358204209103...
6
"9
'118i i2612
15
46637854
190122
136
92
98
о
32-3337354Зб-535-136-535-8зб-б
35-24
о
- 3'5- 3'9- 4'7
= £— 5'9- 5'3- 5'3
— 5-00
о
-41-5- 30-.5- i3'3+ 4'8+ Н'5+ 29'8+ 37-6+ 54'3
...
Group 1927.
Sept. 14-127 о 5 О 2 45'2 - 4-6 — I9"o
Group 1928.
Sept. 22-509^3-32824-30325-12326-10627-104
Means
оо0
о6о
...
6435о8
368
...
О0о0
40
I
32180
523
7
"4
Зоб-8307-2
ЗЮ'5300-2
307-3
307*60
+ 9-3+ 9'3
+ io-о+ 9'5+ 9-3
+ 948
Group 1929.
Sept. 26- 106 5 i8 3 13 221'7 - 4'4
- 6-7+ 4'6
+ 3 I - 5 -+ 40-2+ 54'5
-44-3
Group 1930.
Sept. 30- 1 70
Oct. 1-4532-4153-1914'54i5-481
7
59
28
2428
3z
4168
'1°163177
13
46
i?
\l
64
37459i8897
I39-6
I43-0
146-1146-8
I47-5148-4
- 1 6-8
- 15-2- 147
- 15-4- 157
-72-8
- 52-5- 36-6
- 7-2+ 6-0
Date.Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra WholeSpot.
Mean
Longitude
of Group.
Mean
Latitudeof Group.
Longitude
from
CentralMeridian.
Group 1930 — continued.
1886. „Oct. 6-273
7-3578-290
9-14310-456
Means
393822
13О
...
49127887538
...
22241612
О
'3
84
79
<5
д9
69
72
о
148-81484148-01 47' 5148-2
146-57
о
- i5'9- I5-5- 15-2- iS'i- Ч-З
- ЧЧб
0
+ 1 6-9+ 30-8+ 42-8+ 53-6+ 7I-5
...
Group 1931.
Oct. 6-273 3 IO 2 6 156-7 - 9-8 + 24-8
Group 1932.
Oct. 6-2737'3578-290
9-I43
Means
52O6О
...
24
M9
...
312
3о
5
184541
5
27
86-287-086787-0
86-73
- 7'5- 7-1- 77- 7-1
- 7'35
-457— 30-6-18-5
6-9
...
Group 1933.
Oct. 11-500 О 53 о 27 57'9 — 10-8 - 5-0
Group 1934.
Oct. 12-158 0 ' 9 о 4 46-2 + з-i - 8-1
TAKEN AT THB ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 91
AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S. DISK — continued.
Date.
GreenwichCivil Timo.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group.
Longitudefrom
CentralMeridian.
Group 1935.
1886. aOct. 15-149
16-23017-13018-286
i9'»5320-37621-15722-492
Means
IS- 41
37Ч0
0
00
...
672872909Í2617о
H
...
IO
21
'980
0
о0
7
424915451
ISIIо
19
5б
о
34I-4342-1343-1343-6342-1342-4
345-0
342-81
ь
— 1Г2
-II-5— I2'O
I 1-6
-II-4
— 1ГО
-11-4-11-44
0
-33-3— 18-4- 5-6+ 10-2
+ 2I-4
+ 36-5
+ 67-I
...
Group 1936.
Oct. 23-12124-50725-13026-14627Ч3528-14529-469
Means
о7
IO
101 9'138
...
Ч7i9566
?í96i
...
о897
i i74
7
6288944742
3731
57
185-4184-8i847185-0185-3184-618,5-1
184-99
+ 16-5+ 15-8+ 16-0+ 15-6+ 15-6+ 15-9+ 15-3+ 15-81
—84-2-66-6-58-5-447-3!'3-i8-6- 0-8
...
Group 1937.
Oct. 29-46930-105
Means ...
0
о
...
824
...
0
о
о
I I47
29
254-0252-1
253-05
-6-3- 6-3
— 6-30
+ 68-1+ 74-6
...
Group 1938.
Nov. 12-33213-14814-205
Means ...
ï4о
...
I l17i6
...
I20
I
7
I8
33I-7332-3331-5
33I-83
-14'5-14-7-15-0
-1473
-314— 2О-О
- 6-9
...
Date.1 Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area f orGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
Mean
Latitudeof Group.
Longitude
from
CentralMeridian.
Group 1939.
1886. цNov. 15-280
16-19117-462
Means ...
оО
О
...
I
720
...
0
оо
о
i5
12
б
0
262-9264-5263-9263-77
О
- S'°- 5'5- 4-2
- 4'9°
о
-6i-3-477— 31*6
...
Group 1940.
Nov. 26-348 2 12 I 6 194-6 - 5-8 + 16-2
Group 1941.
Dec. 10*50211-39912-48513-21214-29615-36216-282I7-33418-55219-25020-18221-198
Means
О
421
27377563775759
3ï
...
27IO4128
'À516237241141229517813245
...
о3
13i621
4°3447
, 4557
52
24
3086847°89
199227253231172193
87
43
290-2289-8289-8289-5289-4289-7290-82917293-2293-2293-1284-8
290-43
+ 18-8+ 18-6+ I8-6+ 19-2+ 19-3+ 19-0+ 18-5+ 18-2+ 17-8+ i7'6+ 17-3+ 19-1
+ 18-50
-61-7-50-2-35-9-26-7-12-5+ 1-7+ 15-1+ 29-8+ 47-3+ 56-S+ 68-7+ 73-8
...
Group 1942.
Dec. 12-48513-212
Means ...
2
5
...
3328
...
I3
2
20Ч
18
294-6295-7
295-15
+ 134+ 134
+ 13-40
-31-1
...
Group 1943.
Deo. 22*23823-5Ч24-54825-502
о22
1б
7
5144234133
0
19n4
12615977
130-2125-4
I 2 5 - 5124-9
— lo-i— II 'O
— in-II-5
—67-0-55-0-41-2-29-3
Б M 2
92 AREAS AND HELIOÖRAPHIO POSITIONS OP SPOT GROUPS ON тын SUN'S DISK DEDUCED FROM PHOTOGRAPHS, 1886.
AREAS and HBLIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK— concluded.
Date.GreenwichCivil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
Mean
Longitudeof Group.
Mean
Latitudeof Group.
Longitudefrom
CentralMeridian.
Group 1943 — continued.
1886. „26-18027-15628-22929-477
Means ...
21
1733
...
1 021284217
...
12
92
2
7
566622
29
68
о
125-2
124*21 24- 8
125-64
О
-1 1-6— I2-O
-12-4
-12-9
— 1Г58
0
— 20-2
- 77+ 5'3+ 224)
...
Group 1944.
Dec. 23-514. 24-548
25-50226-18027-15628-22929-47730*15931-522
1887.Jan. ï-
2-1933-244
Means ...
21
277189
I85
74597620
135
...
200388629786939795527439177
89
...
3i254954
IOO
383041
18
138
37
326
3774474875"407269232132
905*
303
108-2108-1108-9109-8109-91 10-2I I I - 51 1 2'2II2-7
II3-61 1 1'9
1 10-64
- 8-7- 87- 8-3- 8-2- 8-2- 8-4- 8-2— 8-0- 8-0
- 8-5- 8-2
- 8-31
-72-2-58-6-45'3-35-6-22-7- 8-1+ 9'6+ 19-2+ 37-8
+ 60-6H-72'8
...
Date.Greenwich
Civil Time.
ProjectedArea of
Umbra. WholeSpot.
Area forGroup.
Umbra. WholeSpot.
MeanLongitudeof Group.
MeanLatitudeof Group.
Longitudefrom
CentralMeridian.
Group 1945.
1886. „Dec. 24-548
25-50226-180
Means
00
5
22
27SO
...
о0
3
I
I l«429
18
о
I7I-2170-7172-0
171-30
0
+ 12-6
+ I2-O
+ I2-I
+ I2-23
0
+ 4'5+ 16-5+ 26-6
Group 1946.
Dec. 28-22929-47730-15931-522
1887.Jan. ï-
2-1933-2444-226S47I6-1867-1828-161
Means . .
о '10
1727
3619-9'91386
...
2186
119
•57
«57121
945«5822
•5
0
12
«512
'9IO
IO
I I876
10
50102
1 088i
84634930381716
58
40-037-?.37'237'3
37-637'538-137'937-6
37-6
3774
-16-9-i6-5-16-5-16-7
-167-16-5-16-3-IÓ-2-I6-2— 1 6-0-i6'8
— 16-48
-78-3-647-55-8
'-ЗУ*
-154- -7+ 11-9+ 28-1+ 37*2+ 49'9+ 63-2
...
ROYAL OBSERVATORY, GREENWICH.
TOTAL PKOJECTED AEEASOP
UMBRAE, WHOLE SPOTS, AND FACULTE
UPON THE SUN'S DISK
FOR EACH DAY,
DEDUCED FROM THE MEASUREMENT
OP
S O L A R P H O T O G R A P H S
IN THE YEAR
1886.
94 TOTAL PROJECTED AREAS OP UMBR^, WHOLE SPOTS, AND FACULTE
TOTAL PROJECTED AREAS OF UMBR-Ж, WHOLE SPOTS, AND FACULTE UPON THE SUN'S DISK FOR EACH DAYIN THE YEAR 1886.
The Projected Area is the area as it is measured on the photograph, uncorrected for the effect of foreshortening, andexpressed in millionths of the Sun's apparent disk.
The Greenwich Civil Time is expressed by the month, day of the month (civil reckoning) and decimal of a day, reckonedfrom Greenwich Mean Midnight.
GreenwichCivil Time.
dJan. ï- г
2 43'4'2
5'56-2
7-1
8'2
9-210-2
II-2
I2'2
I3-3
I4-5
I5-316-517-518-19-520-5Z I ' I
22'2
23-2
24'525'2
26-4
27-5
28-4
29-2
30-331'2
Feb. 1-52-33'34-65'16-57-28-s94
10-2
I I ' Z
12-2
I3-2
I4-2
4-3l6'2
I7'3
18-2I9-3
2O'2
Z I ' I
22-5
Projected Area.
Umbrae.
2427...
1 06120
1332I7
140
I76
2ÓO
238240
206
202272
266
142...
2718
52
О
О
оооо0
о2О
32
67
8i689396
209180162171156160161
845631
538
1826
о
WholeSpots.
294287
715865829
1103n861251
4941534152718871970210919561789...56321491
820
оо0
оо0
но159
2544°34°36737о8768
1004107810421004юоб
9О2
870540322
186563839
"5IO2
FaculsB.
607734
432343611584789828
13291283
5251322
449868566996
269376938320
146394275510271591
416581
444323378636770808
1113
10601213486240765608
"55949
83355473254
.199101
GreenwichCivil Time.
dFeb. 23-2
24425-226-427-528-2
Mar. ï -22'5
344'5
6-2
7'58-494
10-411-512-2
13-6I4-2
I5-2
16-317-4
18-219-520-2
21-2
22'2
23-1
24-5
25-6
26-4
27-1
28-2
2943O'231-4
April ï '4243-64'1
546-47'38-594
10-51 1-612-4
14-115-6
Projected Area.
Umbrie.
Ооо
12
О
1б
ï об
'34153i883344°9404391
246263219269185247по
6118273662
1144320013744133215202167217173
226214262323474718111410373376о0
2O
WholeSpots.
300
369644
275
9654841793211725893146295334725092212
2252
1787
13541078
702
328
103
251
321
537627779851
IIO2II42I27I1287
I43I
4741641413
17712042207219611125968
10196555°9367242
73о0
121
Faculte,
254
87497966
0
358
84418881236
3351022
1092
728
413
139864
636
512
712
I02Ó1550
799179439793746454176337921
1218324590944742878737
935401Z71
11697165723482245790863947184
о454
GreenwichCivil Time.
April 1 6-417-118-119-42O'6
2Г2
22'4
23-5
' 24-525-6
20-6
27428-5
29-5
304
May ï -42434445-66-57'58-29' 5
10-5н'з12-2
I3 ' II4-I
44l6'I
I7'318-419-120-1
21-4
22'2
237,244
25-6
27-528-4
29-5
30'5
SI'S
June г 52 43'i445'56-6
Projected Area.
Umbrffi.
264229
2781
1651241331531 20in142156157I 12
175225
285
280
186391
1 68219
7291
10437unоооо0
I I22
37ю843'S3126182148132122
128
732826
102
2Об
22О
WholeSpots.
1 86214222
30563I
768
951
1046928982938867
116813781294
1220
2431
25 98
2539
27492669
22O7
I940
483
I066
674
28l
226
73ооо0
0
24
99275536655628
662
77868l643737652
315i8i221
677
1227
1481
Faoulro,
383351
о
34-379773756458856454°5584164I2
981472
и 645736go99Z
5971761505991 66
7279957891778432034557443°47363°244382
1054497608683
12071396729
22911 176
418257183422222
732
GreenwichCivil Time.
dJune 7 '4
8494
10-3n'412-413-614-215-516-5i7'518-219-42O'4
2Г2
22'5
234
244
25426-427'528-4294304
July ï '4243444546-47'58-594
10-51 1-6I2 ' IJ3'544i5'5i6'417-118-619-220-421422-423-224425-226-427'528-429-4
Projected Area.
Umbras.
218177163119
54180
оо
I I195462
5°64747°433025IO
42
77117
441341 66431408o794222
0
0
О
О
4О
8зб
114117205
1692ОО
122
IOO
72
7б128
142105
WholeSpots.
15641362926621
339HO
0
o.о
68хб 5203
447483449565598збб2591 6o260fS623
1041
118710981023901721675608336139
оо0
12
8i20
in23874682911
юнni8841834569597810917959
Paoulffi,
298282
733733575489640
оï об12$64568 1199190
0
741799435
'545863201
766
768
982
60
О
210
157512
277412
569672362
.3°54611 16494284460635
0
154654759726
949957
956ибо
1400
UPON THE SUN'S DISK FOR EACH DAY IN THE YEAR 1886. 90
TOTAL PROJECTED AREAS OF Пнвк-ж, WHOLE SPOTS, AND FACULTE— concluded.
GreenwichCivil Time.
d
July 30-53i '5
Aug. 1-52'2
"3-6
546-6748-49-6
11-412-4
14-2i5'316-4I7-518-419-2
21-422-523'524-525-226-427-6284
3°'5314
Sept. 1-4243'34'55'5
Projected Area.
Umbreo.
98121
6l
97456232S2
3729u152429'3518
' 22
. 20
2323
12
2
0
о !оо0
372
4о
12
H
5248í6боЗб
WholeSpots.
892707
548593271317277285323хбб10491
123
174i67
177152
1б2
'З1
о86о28
0
о476
233i87
91
22
5945
419
4SI493378
Faoulœ.
0
. 648
332253
7963644 ï41935476
14635274989227097
185374713614696879489480522197282290
93301217179SS'
103;526322196
0
GreenwichCivil Time.
dSept. 6-4
7'5849' 5
io'4i i ' S12-313-414-1I5 -316-617418-519-120-321422-523-324'325-126-127-128-529-63°'2
I
Oct. 1-52'43-24'55'56-3748-39-1
10-511-5I2 '2
i3'5H'S
Projected Area.
Umbrcol
4439362329485462
105108
5868668648
3оо0
оII0
о0
7
5 ,9
28
2428
475827
13оооо0
WholeSpots.
343379281130294361
-4676376166574286154354SI291
456435
о8
5380
0
32
í1684°i63177182201
l64
8338
539оо
Faculte.
278412
447i i 6
135°636636292818327
92628641
17081312220
О
858
1бз128
гс8
937о
83226
О
О
423121
217320
52б
406360
0
о26
13б
312
GreenwichCivil Time.
dOct. 15-1
l6'2
I7-I
18-3
I9'320-42Г2
22'5
23-I24'525-126-127-128-129'530-131-2
Nov. ri2'5
3444546-17-28-49'3
10-2
1Г1
12-3
I3-I
I4-2
i5 '3l6'2
i7'5i8'519-22O'I
2Г2
22'3
Projected Area.
Umbrse.
154137'5о0
оо0
7IO
' IO191380
o
0
ooooo0
oo0
oI40
o0
oooo0
o
WholeSpots.
66287290962617с
H4
956669696924
о
0
ооо0
ооо0
оо
I I«716
I7
20
0
О
о0
0
Faculte.
106о
Ю7214.юб323290500
1029
18533'323
'43ззб
665°
382
1027
378175179б24
5381633685'9401253
39'95257526321
О
158ззб399205
8i
GreenwichCivil Time.
dNov. 23-3
24'325426-327-228-329430-4
Dec. 1-32'3
3'2
5'2
6-2
7'2
8-59-2
10-511-412-513-214-344'6-3I7-318-6'9'32O'2
21*2
22'2
23^
25*5гб-227'2
28-2
29-5
30'2
31-5
Projected Area.
Umbrae.
оо0
2
О
0
о0
0
ооо0
о0
0
оо4
23
32
377563
775759
3ïо
42
4377
"52О2
777293
WholeSpots.
ооо
12
0
О
оо
0
ооо0
о0
о0
27IO4loi'431б2
3724M412
295178132
455
34464479°938
858630558334
Faculte.
45488408213109
0
4853
8734411443198
оо
38233
83
236
Зоо79
28Í
224348
6914бб3829'
2S646,22
124
О
9374
'74о
96 MBAN ABBAS OP имввл;, WHOLE SPOTS, AND FAOUL-Ж UPON тнв SUN'S DISK ON PHOTOQBAPHS
MEAN AB.BÁS of Пмввд!, WHOLE SPOTS, and FAOUL^J upon the SUN'S DISK, as measured on PHOTOGBAPHStaken at the ROYAL OBSEBVATOBY, GBEENWIOH, at DHHBA DUN, INDIA, and in MAUBITIUS, for eachROTATION of the SUN, from 1885 December 21 to 1887 January 6.
The Mean Areas have been formed by taking the Means of the Areas for each day of observation throughouteach Rotation of the Sun, the Projected Areas being the areas as measured on the photographs and expressed inmillionths of the Sun's apparent disk, and the Areas corrected for foreshortening being expressed (as in formeryears) in millionths of the Sun's visible hemisphere.
The rotations adopted in the following table (which is in continuation of those for the years 1873-1884 and1885 printed in the Greenwich Observations for 1884 and 1885) correspond to the synodic rotation of the Sun,and the commencement of each is defined by the coincidence of the assumed prime meridian with the centralmeridian, the assumed prime meridian being that meridian which passed through the ascending node at meannoon on January ï, 1854, and the assumed period of the Sun's sidereal rotation being 25-38 days. The rotationsadopted in the volumes of Greenwich Observations, 1877 to 1883, correspond on the other hand to the siderealrotation of the Sun, the commencement of each being defined by the coincidence of the assumed prime meridianwith the ascending node. The numeration of the rotations is in continuation of Carrington's series (Observa-tions of Solar Spots made atRedhill by R. G, Carrington, F.R.S.), No. ï being thé rotation commencing 1853,November 9, The dates of commencement of the rotations are given in GBEHNWIOH CIVIL TIME, reckoningfrom midnight.-
No. ofRotation.
431432433434435436437438439440441442443444
Date of Commencement of eachRotation.
1885 December 20-331886 January 16-66
February 13-00March 12-33April 8-63May 5-88June 2-09June 29-29July 26-49August 22-72September 18-98October 16-27November 12-57December 9-89
t
No. of Dayson which
Photographswere taken.
26262827272727282727282727 '27
Mean of Daily Areas.
Projected.
Umbrae.
138
126156no9270854640164о
49
Whole Spots.
951469
10701091916641489575320317
9535
3341
Faculœ.
835576600713574655476401425422316335194254
Corrected for Foreshortening.
Umbra.
904390
108876852
563026ii
3о
32
Whole Spots.
655
766800745459370397-205200
69
272
232
Faculte.
975712717894710756бы499505516377421236324
MEAN AREAS of UMBRAE, WHOLE SPOTS, and FACULJB upon the SUN'S DISK, as measured on PHOTOGBAPHS takenat the ROYAL OBSEBVATOBY, GREENWICH, at DEHBA DUN, INDIA, and in MAURITIUS, for the YEAR 1886.
The Mean Projected Areas are expressed in millionths of the Sun's apparent disk.
The Mean Areas corrected for foreshortening are expressed in millionths of the Sun's visible Hemisphere.
Year.
1886
No. of dayson which
Photographs weretaken.
ЗбЗ
Mean of Daily Areas.
Projected.
Umbrae.
71
Whole Spots.
527
Faoulre.
473
Corrected for Foreshortening.
Umbras.
5°
Whole Spots.
381
Faculte.
579
TAKHN AT тин ROYAL OBSERVATORY, GRBUNWIOH, IN INDIA, AND IN MAURITIUS, IN тнв YEAR 1886. 97
MEAN HELIOGRAPHIO LATITUDE of the SPOTS upon the SUN'S DISK, as measured on PHOTOGRAPHS taken at theROYAL OBSERVATORY, GREENWICH, at DEHRA DUN, INDIA, and in MAURITIUS, for each ROTATION of theSUN, from 1885 December 21 to 1886 December 9.
The numbers given in the accompanying table have been formed as follows :—The Heliographie Latitude of each Spot for each day has been multiplied by its Area (corrected for fore-
shortening), and the sum of the products for Spots North of the Sun's Equator has been divided by the sum of thecorresponding Areas to form Mean Heliographie Latitude of Spotted Area North of Equator ; similarly for SpotsSouth of the Equator. In forming the Mean Heliographie Latitude of entire Spotted Area the algebraic sum ofthe products for Spots North and South of the Equator has been divided by the sum of the Areas ; and for theMean Distance from the Equator for all Spots, the numerical sum of the products, without regard to the sign ofthe latitude, has been similarly divided.
The Mean Areas .have been formed by dividing the sum of the Daily Areas (corrected for foreshortening) bythe number of days of observation for each Rotation of the Sun, and are expressed in millionths of the Sun'svisible hemisphere.
No.of
Rotation.
4314-3243343443543643743843944°441442443444
Date ofCommencement
of each Rotation.
it
1885 Dec. 20-33i886 Jan. 16-66
Feb. 13-00Mar. 1 2-33Apr. 8-63May 5-88June 2 '09June 29-29July 26*49Aug. 2272Sept. 18-98Oct. 16-27Nov. 12-57Dec. 9-89
No. of Days
on which.Photographs
were taken.
262628272727г?28
27
г?28
27
*7*7
Spots NOHTH of the Equator.
Meanof DailyAreas.
'59ЧI I
'54204213
42Ч70
153ZI
» Sо
67
MoanHeliographio
Latitude.
о
12-588-332-13
5 -об7-S88-77
10-49i6-94157912-4912-4716-07
оl8-I2
Spate SOUTH of, the Equator.
Meanof DailyAreas.
496
335754647
541246328382
135534812
2
I65
MeanHeliographie
Latitude.
о
I0'32
1075
9-04
8-80
U-87
10-45
13-90
12-59
877lO'I I
I2'3310-799-179-84
Mean
HeliographieLatitude of entire
Spotted Area.
о
- 4'77— 10-05- 8-88— 6-13- 6-54- i'S7— 1142
- I I ' S I
- 0-41
+ 6-70
- 4'9i+ 4'* 5- 947- 178
MeanDistance from
Equatorof all Spots.
о
10-87IO-66
8-948-o8
10-709-67
13'Si12-75i r io11-8812-371375
9-1712-23
MEAN HHLIOGRAPHIC LATITUDE of SPOTS upon the SUN'S DISK, as measured on the PHOTOGRAPHS taken at theROYAL OBSERVATORY, GREENWICH, at DEHRA DUN, INDIA, and in MAURITIUS, for the YEAR 1886.
УКАЙ.
1886
No. of Dayeon which
Photographswere taken.
363
Spots NOHTH of the Equator.
Mean ofDaily Areas.
76
Mean HeliographieLatitude.
о
9'93
Spots SOUTH of the Equator.
Mean ofDaily Areas.
305
Moan HeliographieLatitude.
0
10-50
Mean Heliographie
Latitude of entireSpotted Area.
о
- 6-42
Mean Distancefrom Equator of
all Spots.
о
10-38
NOTE.—In the computations for forming the corresponding Tables given in the Volumes for 1884 and 1885the latitudes of the Spots were only taken to the nearest whole degree, the next higher whole degree being adoptedwhenever the fractional part of the latitude amounted to or exceeded -5. Thus, under 8°, for example, would beincluded all Spots from 7°'5 to 8°-4, both inclusive ; and the corresponding mean latitude should have been takenas 70i95 instead of 8°. The Mean Heliographie Latitudes, therefore, both for Spots North and Spots South of theEquator, and the Mean Distances from the Equator of all Spots, both for the rotations and for entire years, requirea correction of — o°-o5. The Mean Latitude of the entire Spotted Area requires the following correction :—
_ Oi Mean Area N. — Mean Area S.Mean Area N. + Mean Area S.
These corrections have been applied in computing the Mean Heliographie Latitudes and Mean Distance from theEquator given in the above Tables for 1886.
GBEENWIOH OBSUBBVATIONB, 1886.
G R E E N W I C H
SPECTROSCOPIC A.KD PHOTOGRAPHICR E S U L T S ,
1886.