COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for 2007

Total:
Number of active observers:
(total includes noncontributing observers)
196 of 2535
Number of active associations:
(total includes noncontributing associations)
13 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)
72 of 1637
Total number of observations:
6115
- Visual Observations:
5264
- CCD Observations:
851

Observed comets: (72)
Total:
Visual:
CCD:
Short-period comets: (35)
3737 3341 396
One-apparition Short-period comets: (4)
53 24 29
Long-period comets: (33)
2325 1899 426

Most observed comets:
Total:
Visual:
CCD:
2651 2565 86
639 594 45
502 445 57
393 355 38
335 285 50
281 261 20
176 148 28
152 120 32
110 69 41
102 46 56

Top observers:
Total:
Visual:
CCD:
341 0 341
194 194 0
189 31 158
159 159 0
154 154 0
150 150 0
142 142 0
137 14 123
128 128 0
122 122 0

Top Associations:
Total:
Visual:
CCD:
1785 1580 205
1362 1244 118
937 790 147
587 246 341
522 522 0
462 462 0
255 255 0
125 85 40
35 35 0
23 23 0

Top Countries:
Total:
Visual:
CCD:
671 474 197
627 286 341
571 571 0
546 444 102
513 513 0
425 425 0
383 383 0
382 382 0
358 358 0
316 316 0