COBS Statistics page

COBS Statistics:
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Observations statistics for 2013

Total:
Number of active observers:
(total includes noncontributing observers)
118 of 2621
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 1744
Total number of observations:
4814
- Visual Observations:
3296
- CCD Observations:
1518

Observed comets: (119)
Total:
Visual:
CCD:
Short-period comets: (43)
910 455 455
One-apparition Short-period comets: (9)
92 12 80
Long-period comets: (67)
3812 2829 983

Most observed comets:
Total:
Visual:
CCD:
865 758 107
636 578 58
583 516 67
514 361 153
177 158 19
167 140 27
123 104 19
115 81 34
115 98 17
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
1047 712 335
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
215 215 0
206 12 194
203 161 42