COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for 2004

Total:
Number of active observers:
(total includes noncontributing observers)
267 of 2543
Number of active associations:
(total includes noncontributing associations)
12 of 15
Number of active countries:
(total includes noncontributing countries)
33 of 250
Number of observed comets:
(total is number of comets in COBS database)
100 of 1655
Total number of observations:
10536
- Visual Observations:
8628
- CCD Observations:
1908

Observed comets: (100)
Total:
Visual:
CCD:
Short-period comets: (43)
1438 748 690
One-apparition Short-period comets: (7)
82 5 77
Long-period comets: (50)
9016 7875 1141

Most observed comets:
Total:
Visual:
CCD:
3426 3163 263
1620 1405 215
1304 1285 19
1153 1086 67
418 328 90
389 310 79
293 174 119
273 239 34
155 80 75
135 68 67

Top observers:
Total:
Visual:
CCD:
955 239 716
383 0 383
360 360 0
312 312 0
279 0 279
276 74 202
269 269 0
262 262 0
252 252 0
229 229 0

Top Associations:
Total:
Visual:
CCD:
2329 2252 77
2296 1809 487
1985 1740 245
1651 552 1099
819 819 0
464 464 0
387 387 0
360 360 0
150 150 0
51 51 0

Top Countries:
Total:
Visual:
CCD:
1735 636 1099
1381 1179 202
1186 656 530
791 791 0
654 654 0
583 583 0
526 526 0
420 417 3
370 370 0
365 365 0