COBS Statistics page

COBS Statistics:
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Observations statistics for Harold B. Ridley (RID)

Total:
Number of observed comets:
(total is number of comets in COBS database)
21 of 1783
Total number of observations:
190
- Visual Observations:
190
- CCD Observations:
0

Observed comets: (21)
Total:
Visual:
CCD:
Short-period comets: (4)
15 15 0
One-apparition Short-period comets: (0)
0 0 0
Long-period comets: (17)
175 175 0

Observed comets:
Total:
Visual:
CCD:
34 34 0
34 34 0
18 18 0
17 17 0
15 15 0
10 10 0
10 10 0
8 8 0
8 8 0
7 7 0
5 5 0
5 5 0
3 3 0
3 3 0
3 3 0
3 3 0
2 2 0
2 2 0
1 1 0
1 1 0
1 1 0
Year:
Total:
Visual:
CCD:
1982 17 17 0
1981 16 16 0
1980 17 17 0
1979 1 1 0
1978 3 3 0
1977 15 15 0
1976 2 2 0
1975 18 18 0
1974 44 44 0
1972 3 3 0
1970 50 50 0
1966 1 1 0
1962 3 3 0