COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for 2012

Total:
Number of active observers:
(total includes noncontributing observers)
68 of 2540
Number of active associations:
(total includes noncontributing associations)
11 of 15
Number of active countries:
(total includes noncontributing countries)
21 of 250
Number of observed comets:
(total is number of comets in COBS database)
100 of 1651
Total number of observations:
2512
- Visual Observations:
1865
- CCD Observations:
647

Observed comets: (100)
Total:
Visual:
CCD:
Short-period comets: (45)
839 606 233
One-apparition Short-period comets: (11)
41 15 26
Long-period comets: (44)
1632 1244 388

Most observed comets:
Total:
Visual:
CCD:
444 405 39
233 213 20
207 177 30
198 135 63
122 102 20
117 90 27
100 74 26
92 55 37
84 54 30
79 47 32

Top observers:
Total:
Visual:
CCD:
371 371 0
340 68 272
142 40 102
134 134 0
133 133 0
109 109 0
101 4 97
90 32 58
82 82 0
76 76 0

Top Associations:
Total:
Visual:
CCD:
687 530 157
670 632 38
390 118 272
354 347 7
212 57 155
87 87 0
63 45 18
34 34 0
12 12 0
2 2 0

Top Countries:
Total:
Visual:
CCD:
462 190 272
371 371 0
346 339 7
301 89 212
216 216 0
184 80 104
170 142 28
111 111 0
87 87 0
70 64 6