COBS Statistics page

COBS Statistics:
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Observations statistics for 1987

Total:
Number of active observers:
(total includes noncontributing observers)
189 of 2609
Number of active associations:
(total includes noncontributing associations)
11 of 16
Number of active countries:
(total includes noncontributing countries)
27 of 250
Number of observed comets:
(total is number of comets in COBS database)
48 of 1740
Total number of observations:
4885
- Visual Observations:
4885
- CCD Observations:
0

Observed comets: (48)
Total:
Visual:
CCD:
Short-period comets: (33)
1189 1189 0
One-apparition Short-period comets: (0)
0 0 0
Long-period comets: (15)
3696 3696 0

Most observed comets:
Total:
Visual:
CCD:
2040 2040 0
494 494 0
400 400 0
392 392 0
272 272 0
197 197 0
135 135 0
110 110 0
107 107 0
94 94 0

Top observers:
Total:
Visual:
CCD:
279 279 0
243 243 0
235 235 0
150 150 0
137 137 0
136 136 0
134 134 0
124 124 0
123 123 0
118 118 0

Top Associations:
Total:
Visual:
CCD:
1975 1975 0
1127 1127 0
551 551 0
523 523 0
261 261 0
150 150 0
109 109 0
107 107 0
42 42 0
38 38 0

Top Countries:
Total:
Visual:
CCD:
1182 1182 0
518 518 0
441 441 0
405 405 0
361 361 0
254 254 0
237 237 0
204 204 0
202 202 0
162 162 0