COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for 2015

Total:
Number of active observers:
(total includes noncontributing observers)
127 of 2543
Number of active associations:
(total includes noncontributing associations)
13 of 15
Number of active countries:
(total includes noncontributing countries)
27 of 250
Number of observed comets:
(total is number of comets in COBS database)
135 of 1657
Total number of observations:
5182
- Visual Observations:
3354
- CCD Observations:
1828

Observed comets: (135)
Total:
Visual:
CCD:
Short-period comets: (64)
1266 433 833
One-apparition Short-period comets: (10)
38 1 37
Long-period comets: (61)
3878 2920 958

Most observed comets:
Total:
Visual:
CCD:
1878 1718 160
450 354 96
274 198 76
207 150 57
190 131 59
158 119 39
144 88 56
113 46 67
109 49 60
104 81 23

Top observers:
Total:
Visual:
CCD:
681 1 680
355 0 355
334 11 323
249 249 0
176 176 0
172 172 0
170 170 0
137 137 0
127 36 91
116 116 0

Top Associations:
Total:
Visual:
CCD:
1616 1210 406
1158 829 329
1035 292 743
383 137 246
381 381 0
201 165 36
184 126 58
91 91 0
86 86 0
22 12 10

Top Countries:
Total:
Visual:
CCD:
1157 828 329
1018 276 742
438 438 0
425 70 355
383 227 156
379 379 0
248 212 36
208 191 17
131 40 91
119 60 59