COBS Statistics page

COBS Statistics:
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Observations statistics for 2004

Total:
Number of active observers:
(total includes noncontributing observers)
268 of 2633
Number of active associations:
(total includes noncontributing associations)
13 of 16
Number of active countries:
(total includes noncontributing countries)
33 of 250
Number of observed comets:
(total is number of comets in COBS database)
101 of 1763
Total number of observations:
10556
- Visual Observations:
8648
- CCD Observations:
1908

Observed comets: (101)
Total:
Visual:
CCD:
Short-period comets: (43)
1448 758 690
One-apparition Short-period comets: (7)
82 5 77
Long-period comets: (50)
9025 7884 1141

Most observed comets:
Total:
Visual:
CCD:
3418 3155 263
1619 1404 215
1315 1296 19
1153 1086 67
421 331 90
396 317 79
299 180 119
272 238 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:
2300 2052 248
2274 2200 74
2070 1583 487
1651 552 1099
819 819 0
423 423 0
387 387 0
360 360 0
147 147 0
54 54 0

Top Countries:
Total:
Visual:
CCD:
1735 636 1099
1381 1179 202
1187 657 530
791 791 0
613 613 0
583 583 0
526 526 0
420 417 3
370 370 0
365 365 0