COBS Statistics page

COBS Statistics:
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Observations statistics for 2019

Total:
Number of active observers:
(total includes noncontributing observers)
67 of 2670
Number of active associations:
(total includes noncontributing associations)
12 of 17
Number of active countries:
(total includes noncontributing countries)
19 of 250
Number of observed comets:
(total is number of comets in COBS database)
78 of 1786
Total number of observations:
2326
- Visual Observations:
932
- CCD Observations:
1394

Observed comets: (78)
Total:
Visual:
CCD:
Short-period comets: (36)
1133 468 665
One-apparition Short-period comets: (2)
3 0 3
Long-period comets: (40)
1190 464 726

Most observed comets:
Total:
Visual:
CCD:
442 310 132
315 208 107
170 84 86
130 60 70
126 53 73
111 40 71
102 24 78
64 19 45
56 11 45
55 16 39

Top observers:
Total:
Visual:
CCD:
486 0 486
224 0 224
187 0 187
180 0 180
120 120 0
92 92 0
79 79 0
68 68 0
60 60 0
60 60 0

Top Associations:
Total:
Visual:
CCD:
694 282 412
517 2 515
478 305 173
337 124 213
193 156 37
69 29 40
14 14 0
13 13 0
6 3 3
2 2 0

Top Countries:
Total:
Visual:
CCD:
695 282 413
548 33 515
302 70 232
149 149 0
137 120 17
126 62 64
101 101 0
69 29 40
55 1 54
41 33 8