COBS Statistics page

COBS Statistics:
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Observations statistics for 2019

Total:
Number of active observers:
(total includes noncontributing observers)
61 of 2660
Number of active associations:
(total includes noncontributing associations)
10 of 17
Number of active countries:
(total includes noncontributing countries)
17 of 250
Number of observed comets:
(total is number of comets in COBS database)
48 of 1766
Total number of observations:
1319
- Visual Observations:
765
- CCD Observations:
554

Observed comets: (48)
Total:
Visual:
CCD:
Short-period comets: (24)
697 418 279
One-apparition Short-period comets: (0)
0 0 0
Long-period comets: (24)
622 347 275

Most observed comets:
Total:
Visual:
CCD:
413 306 107
268 206 62
128 84 44
98 53 45
69 45 24
62 24 38
27 11 16
26 6 20
20 0 20
20 9 11

Top observers:
Total:
Visual:
CCD:
128 0 128
120 0 120
92 92 0
67 0 67
64 64 0
63 63 0
62 0 62
51 51 0
44 44 0
44 19 25

Top Associations:
Total:
Visual:
CCD:
481 232 249
343 236 107
197 109 88
146 128 18
68 1 67
52 27 25
14 14 0
13 13 0
3 3 0
2 2 0

Top Countries:
Total:
Visual:
CCD:
481 232 249
169 65 104
119 103 16
115 115 0
103 31 72
93 58 35
63 63 0
52 27 25
28 21 7
27 1 26