great comets from humble origins & eyes on ison
Post on 24-Feb-2016
68 Views
Preview:
DESCRIPTION
TRANSCRIPT
Great Comets from Humble Origins&
Eyes on ISON
Hubble Science BriefingDr. Frank SummersNovember 7, 2013
Comet of the Century?
2
3
4
5
6
7
8
9
10
11
Great Comets• Caesar's Comet – 44 BC• Halley's Comet – 1066• Great Comet of 1106• Great Comet of 1264• Great Comet of 1402• Great Comet of 1556• Great Comet of 1577• Great Comet of 1680• Great Comet of 1744• Great Comet of 1811• Great Comet of 1843• Donati's Comet – 1858• Great Comet of 1861
• Great Comet of 1882• Great Daylight Comet of 1910• Halley's Comet – 1910• Comet Skjellerup–Maristany – 1927• Comet Arend–Roland – 1957• Comet Seki-Lines – 1962• Comet Ikeya–Seki – 1965• Comet Bennett – 1970• Comet West – 1976• Comet Hyakutake – 1996• Comet Hale–Bopp – 1997• Comet McNaught – 2007• Comet Lovejoy – 2011
12Wikipedia
Great Comets• “Great Comets in History”
– Don Yeomans, April 2007– 71 since 373 BCE (72 w/ Lovejoy)– 22 appearances of Comet Halley
• Characteristics– Tails up to 100 degrees long– Some visible during daylight– Many appear to be sungrazers– Several have broken into pieces– Kreutz family 1843, 1880, 1882, 1887,
1945, 1963, 1965, 1970
• Statistics– 1-3 each century
until Renaissance– 1400s – 4– 1500s – 5– 1600s – 7– 1700s – 2– 1800s – 8– 1900s – 9– 2000s – 1
13
14
The Heart of a Comet
15
16
17
18
19
20
21
Dust in the Solar Wind
22
23
24
25
26
27
28
Play Moviehttp://lasco-www.nrl.navy.mil/solcd/c2_1mth.mpg
29
30
31
32
33
Interplanetary Interlopers
34
35
36
37
38
39
40
41
42
To the Ends of the Solar System
43
44
45
46
47
48
49
50
51
52
53
Kuiper Belt Oort Cloud
Humble Origins
54
Comet ISON
Coming Soon to a Sky Near You
55
56
57
58
59
61
April 10, 2013
May 8, 2013
Comet ISON
62
Plot by Seiichi Yoshida 63
Plot by Seiichi Yoshida 64
Plot by Seiichi Yoshida 65
Breaking Up is Not Hard to Do
66
67
1 of 8
68
2 of 8
69
3 of 8
70
4 of 8
71
5 of 8
72
6 of 8
73
7 of 8
74
8 of 8
Comet Schwassmann-Wachmann 3
75
Comet Schwassmann-Wachmann 3
76
Comet Schwassmann-Wachmann 3
77
Comet Schwassmann-Wachmann 3
78
79
1 of 5
80
2 of 5
81
3 of 5
82
4 of 5
83
5 of 5
Eyes on ISON
84
85
86
87
88
89
90
91
Oct 9, 2013
Comet ISON
92
Oct 11, 2013 93
Oct 24, 2013 94
95
96
Canary Island Serenade
97
Comet ISON
• Mid to Late November– May be visible just before dawn
• Nov 28, 2013– Closest approach to Sun
• Early December– Survive perihelion?– Just before dawn & just after sunset– Probably fade away before holidays
98
Resources
• Sky & Telescope• Universe Today• NASA Comet ISON Observing Campaign• Blogs
– HubbleSite ISONblog– Waiting for ISON– The Sky Live– CIOC blog
99
100
Thank you!
101
Bonus material –
A Smash Hit
102
Washing Machine Crashes into Iceberg at 25,000 MPH
103
104
1 of 7
105
2 of 7
106
3 of 7
108
4 of 7
109
5 of 7
110
6 of 7
111
7 of 7
1 of 16
112
2 of 16
113
3 of 16
114
4 of 16
115
5 of 16
116
6 of 16
117
7 of 16
118
8 of 16
119
9 of 16
120
10 of 16
121
11 of 16
122
12 of 16
123
13 of 16
124
14 of 16
125
15 of 16
126
16 of 16
127
128
top related