COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for 2001

Total:
Number of active observers:
(total includes noncontributing observers)
269 of 2550
Number of active associations:
(total includes noncontributing associations)
11 of 15
Number of active countries:
(total includes noncontributing countries)
32 of 250
Number of observed comets:
(total is number of comets in COBS database)
122 of 1682
Total number of observations:
7730
- Visual Observations:
6280
- CCD Observations:
1450

Observed comets: (122)
Total:
Visual:
CCD:
Short-period comets: (65)
1229 727 502
One-apparition Short-period comets: (4)
161 156 5
Long-period comets: (53)
6340 5397 943

Most observed comets:
Total:
Visual:
CCD:
3009 2841 168
1386 1247 139
825 749 76
339 291 48
223 165 58
191 107 84
174 131 43
171 144 27
67 67 0
67 36 31

Top observers:
Total:
Visual:
CCD:
387 198 189
310 0 310
257 257 0
254 254 0
249 249 0
227 227 0
226 226 0
206 0 206
174 174 0
170 170 0

Top Associations:
Total:
Visual:
CCD:
2461 2003 458
1717 1196 521
1712 1483 229
537 323 214
437 437 0
390 390 0
165 165 0
132 132 0
90 90 0
61 61 0

Top Countries:
Total:
Visual:
CCD:
1132 354 778
990 990 0
785 571 214
458 458 0
456 456 0
421 372 49
406 391 15
387 387 0
299 299 0
283 202 81