COBS Statistics page

COBS Statistics:
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Observations statistics for 2010

Total:
Number of active observers:
(total includes noncontributing observers)
97 of 2619
Number of active associations:
(total includes noncontributing associations)
12 of 16
Number of active countries:
(total includes noncontributing countries)
25 of 250
Number of observed comets:
(total is number of comets in COBS database)
98 of 1742
Total number of observations:
4122
- Visual Observations:
2670
- CCD Observations:
1452

Observed comets: (98)
Total:
Visual:
CCD:
Short-period comets: (44)
2460 1658 802
One-apparition Short-period comets: (18)
264 103 161
Long-period comets: (36)
1398 909 489

Most observed comets:
Total:
Visual:
CCD:
897 664 233
431 359 72
399 351 48
362 308 54
281 274 7
270 138 132
184 100 84
115 87 28
81 14 67
65 64 1

Top observers:
Total:
Visual:
CCD:
693 81 612
350 36 314
268 268 0
184 184 0
178 0 178
173 173 0
158 158 0
154 154 0
123 66 57
123 123 0

Top Associations:
Total:
Visual:
CCD:
986 356 630
921 555 366
762 749 13
506 218 288
429 288 141
373 373 0
69 69 0
39 27 12
19 19 0
9 7 2

Top Countries:
Total:
Visual:
CCD:
982 352 630
627 339 288
388 71 317
372 372 0
371 171 200
269 269 0
228 228 0
227 227 0
173 173 0
159 147 12