COBS Statistics page

COBS Statistics:
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Observations statistics for 2000

Total:
Number of active observers:
(total includes noncontributing observers)
239 of 2621
Number of active associations:
(total includes noncontributing associations)
11 of 16
Number of active countries:
(total includes noncontributing countries)
34 of 250
Number of observed comets:
(total is number of comets in COBS database)
108 of 1744
Total number of observations:
4166
- Visual Observations:
2853
- CCD Observations:
1313

Observed comets: (108)
Total:
Visual:
CCD:
Short-period comets: (60)
855 456 399
One-apparition Short-period comets: (2)
8 5 3
Long-period comets: (46)
3303 2392 911

Most observed comets:
Total:
Visual:
CCD:
1214 1049 165
342 239 103
253 153 100
249 231 18
211 82 129
201 154 47
121 100 21
107 56 51
104 42 62
102 87 15

Top observers:
Total:
Visual:
CCD:
334 151 183
294 0 294
284 284 0
255 0 255
156 156 0
151 151 0
130 130 0
125 0 125
101 38 63
87 87 0

Top Associations:
Total:
Visual:
CCD:
1205 848 357
1111 766 345
887 493 394
401 212 189
221 221 0
156 156 0
104 104 0
45 45 0
17 0 17
11 0 11

Top Countries:
Total:
Visual:
CCD:
1075 234 841
685 496 189
377 377 0
258 168 90
222 222 0
197 152 45
183 161 22
170 170 0
133 133 0
109 109 0