COBS Statistics page

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COBS Statistics:
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Observations statistics for 2013

Total:
Number of active observers:
(total includes noncontributing observers)
116 of 2544
Number of active associations:
(total includes noncontributing associations)
12 of 15
Number of active countries:
(total includes noncontributing countries)
24 of 250
Number of observed comets:
(total is number of comets in COBS database)
119 of 1658
Total number of observations:
4734
- Visual Observations:
3287
- CCD Observations:
1447

Observed comets: (119)
Total:
Visual:
CCD:
Short-period comets: (43)
903 454 449
One-apparition Short-period comets: (9)
92 12 80
Long-period comets: (67)
3739 2821 918

Most observed comets:
Total:
Visual:
CCD:
865 758 107
630 572 58
583 516 67
460 359 101
177 158 19
167 140 27
121 104 17
116 99 17
115 81 34
88 69 19

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
151 151 0
133 133 0
130 130 0

Top Associations:
Total:
Visual:
CCD:
1476 762 714
1196 862 334
615 542 73
423 423 0
372 160 212
234 162 72
200 166 34
73 65 8
69 69 0
50 50 0

Top Countries:
Total:
Visual:
CCD:
918 210 708
562 505 57
514 236 278
423 423 0
313 313 0
303 231 72
289 289 0
215 215 0
206 12 194
202 161 41