COBS Statistics page

COBS Statistics:
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Observations statistics for 2018

Total:
Number of active observers:
(total includes noncontributing observers)
102 of 2665
Number of active associations:
(total includes noncontributing associations)
12 of 17
Number of active countries:
(total includes noncontributing countries)
26 of 250
Number of observed comets:
(total is number of comets in COBS database)
113 of 1770
Total number of observations:
5380
- Visual Observations:
3045
- CCD Observations:
2335

Observed comets: (113)
Total:
Visual:
CCD:
Short-period comets: (64)
3459 2079 1380
One-apparition Short-period comets: (5)
10 0 10
Long-period comets: (44)
1911 966 945

Most observed comets:
Total:
Visual:
CCD:
863 621 242
628 496 132
400 283 117
338 252 86
335 200 135
306 143 163
269 155 114
195 91 104
176 94 82
158 105 53

Top observers:
Total:
Visual:
CCD:
613 2 611
411 0 411
365 365 0
314 314 0
261 0 261
247 247 0
235 0 235
203 203 0
179 52 127
155 0 155

Top Associations:
Total:
Visual:
CCD:
1693 1278 415
1201 521 680
970 269 701
558 431 127
298 63 235
267 267 0
211 84 127
98 75 23
35 35 0
31 4 27

Top Countries:
Total:
Visual:
CCD:
1209 522 687
850 111 739
692 692 0
396 222 174
374 327 47
351 116 235
312 312 0
267 267 0
249 71 178
212 133 79