COBS Statistics page

COBS Statistics:
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Observations statistics for P. B. Doherty (DOH)

Total:
Number of observed comets:
(total is number of comets in COBS database)
16 of 1783
Total number of observations:
156
- Visual Observations:
156
- CCD Observations:
0

Observed comets: (16)
Total:
Visual:
CCD:
Short-period comets: (2)
18 18 0
One-apparition Short-period comets: (0)
0 0 0
Long-period comets: (14)
138 138 0

Observed comets:
Total:
Visual:
CCD:
23 23 0
22 22 0
18 18 0
16 16 0
15 15 0
13 13 0
10 10 0
8 8 0
7 7 0
7 7 0
5 5 0
4 4 0
3 3 0
2 2 0
2 2 0
1 1 0
Year:
Total:
Visual:
CCD:
1996 2 2 0
1992 8 8 0
1983 4 4 0
1977 2 2 0
1976 22 22 0
1975 22 22 0
1974 36 36 0
1973 5 5 0
1970 44 44 0
1968 10 10 0
1963 1 1 0