COBS Statistics page

COBS Statistics:
Select Comet:

Click Submit to distplay statistics for the complete database or select a comet from the list for individual comet observations statistics.

Observations statistics for 2001

Total:
Number of active observers:
(total includes noncontributing observers)
269 of 2577
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 1721
Total number of observations:
7705
- Visual Observations:
6262
- CCD Observations:
1443

Observed comets: (122)
Total:
Visual:
CCD:
Short-period comets: (65)
1227 726 501
One-apparition Short-period comets: (4)
161 156 5
Long-period comets: (53)
6317 5380 937

Most observed comets:
Total:
Visual:
CCD:
2999 2832 167
1385 1247 138
826 750 76
339 291 48
212 156 56
191 107 84
174 131 43
171 144 27
67 67 0
65 36 29

Top observers:
Total:
Visual:
CCD:
380 198 182
310 0 310
257 257 0
254 254 0
249 249 0
227 227 0
217 217 0
206 0 206
174 174 0
170 170 0

Top Associations:
Total:
Visual:
CCD:
2461 2003 458
1729 1208 521
1691 1462 229
530 323 207
424 424 0
390 390 0
165 165 0
132 132 0
90 90 0
65 65 0

Top Countries:
Total:
Visual:
CCD:
1132 354 778
981 981 0
778 571 207
456 456 0
445 445 0
421 372 49
406 391 15
387 387 0
299 299 0
283 202 81