COBS Statistics page

COBS Statistics:
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Observations statistics for 2013

Total:
Number of active observers:
(total includes noncontributing observers)
119 of 2633
Number of active associations:
(total includes noncontributing associations)
13 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)
119 of 1762
Total number of observations:
4858
- Visual Observations:
3340
- CCD Observations:
1518

Observed comets: (119)
Total:
Visual:
CCD:
Short-period comets: (43)
913 458 455
One-apparition Short-period comets: (9)
92 12 80
Long-period comets: (67)
3853 2870 983

Most observed comets:
Total:
Visual:
CCD:
879 772 107
645 587 58
594 527 67
516 363 153
177 158 19
170 143 27
126 107 19
116 99 17
115 81 34
90 69 21

Top observers:
Total:
Visual:
CCD:
649 0 649
310 310 0
194 0 194
191 191 0
182 110 72
172 68 104
171 171 0
156 67 89
151 151 0
133 133 0

Top Associations:
Total:
Visual:
CCD:
1476 762 714
1091 756 335
600 527 73
523 311 212
423 423 0
270 166 104
234 162 72
75 67 8
69 69 0
50 50 0

Top Countries:
Total:
Visual:
CCD:
918 210 708
547 490 57
514 236 278
423 423 0
313 313 0
303 231 72
289 289 0
247 205 42
215 215 0
206 12 194