orbital motion sirius a and sirius b
DESCRIPTION
Orbital Motion Sirius A and Sirius B. Sirius A. Sirius A. Center of mass. Orbital Motion Sirius A and Sirius B. Orbital plane (looking at an angle). Orbital plane (looking perpendicular to the orbital plane along the red arrow). Sirius A. Sirius A. Center of mass. - PowerPoint PPT PresentationTRANSCRIPT
Orbital Motion
Sirius A and Sirius B
Sirius A Sirius A
Center of mass
Orbital Motion Sirius A and Sirius B
Sirius A Sirius A
Center of mass
Orbital plane (looking perpendicular to the orbital plane along the red arrow)
Orbital plane (looking at an angle)
Orbital Motion Sirius A and Sirius B
Sirius A Sirius A
Center of mass
0 31 62 93 124
arc-seconds
Plane of the Sky
Sirius A on the sky
Sirius A and B in space
1850
0 31 62 93 124
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1855
0 31 62 93 124
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1860
0 31 62 93 124
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-6
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1865
0 31 62 93 124
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1870
0 31 62 93 124
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1875
0 31 62 93 124
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The "center of mass" will remain fixed in the following slides.
Watch the orbits carefully.
1880
0 31 62 93 124
arc-seconds
0
+6
-6
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s
1885
0 31 62 93 124
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0
+6
-6
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1890
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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1895
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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1900
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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1905
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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1910
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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s
1915
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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s
1920
0 31 62 93 124
arc-seconds
0
+6
-6
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s
1925
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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s
1930
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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nd
s
1935
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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s
1940
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
seco
nd
s
1945
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
seco
nd
s
1950
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
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s
1955
0 31 62 93 124
arc-seconds
0
+6
-6
arc-
seco
nd
s
Search for Companions Around SiriusJ.M. Bonnet-Bidaud , F. Colas and J. Lecacheux Astronomy and Astrophysics v360, 991-996 (2000)
4 arc-minutesor 1/15 degree
W
North
E