COBS Statistics page

COBS Statistics:
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Observations statistics for 2019

Total:
Number of active observers:
(total includes noncontributing observers)
65 of 2667
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)
61 of 1770
Total number of observations:
1813
- Visual Observations:
831
- CCD Observations:
982

Observed comets: (61)
Total:
Visual:
CCD:
Short-period comets: (31)
942 437 505
One-apparition Short-period comets: (0)
0 0 0
Long-period comets: (30)
871 394 477

Most observed comets:
Total:
Visual:
CCD:
442 310 132
306 208 98
160 84 76
120 53 67
112 59 53
96 24 72
40 14 26
38 9 29
37 6 31
35 2 33

Top observers:
Total:
Visual:
CCD:
324 0 324
161 0 161
156 0 156
117 0 117
104 104 0
70 70 0
64 64 0
58 58 0
58 58 0
52 19 33

Top Associations:
Total:
Visual:
CCD:
569 251 318
407 268 139
325 1 324
263 115 148
153 134 19
61 28 33
14 14 0
13 13 0
3 3 0
2 2 0

Top Countries:
Total:
Visual:
CCD:
570 251 319
373 33 340
230 66 164
126 109 17
124 124 0
96 60 36
80 80 0
61 28 33
36 1 35
35 27 8