COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for John E. Bortle (BOR)

Total:
Number of observed comets:
(total is number of comets in COBS database)
173 of 1632
Total number of observations:
3262
- Visual Observations:
3262
- CCD Observations:
0

Observed comets: (173)
Total:
Visual:
CCD:
Short-period comets: (55)
1450 1450 0
One-apparition Short-period comets: (4)
32 32 0
Long-period comets: (114)
1780 1780 0

Observed comets:
Total:
Visual:
CCD:
211 211 0
120 120 0
98 98 0
95 95 0
75 75 0
73 73 0
70 70 0
67 67 0
64 64 0
63 63 0
57 57 0
55 55 0
54 54 0
54 54 0
50 50 0
48 48 0
47 47 0
47 47 0
46 46 0
43 43 0
43 43 0
42 42 0
41 41 0
41 41 0
39 39 0
36 36 0
36 36 0
31 31 0
30 30 0
30 30 0
30 30 0
30 30 0
29 29 0
29 29 0
27 27 0
26 26 0
26 26 0
25 25 0
25 25 0
25 25 0
25 25 0
24 24 0
23 23 0
22 22 0
22 22 0
22 22 0
21 21 0
21 21 0
21 21 0
20 20 0
20 20 0
20 20 0
20 20 0
19 19 0
19 19 0
19 19 0
18 18 0
18 18 0
18 18 0
18 18 0
18 18 0
17 17 0
17 17 0
17 17 0
17 17 0
17 17 0
17 17 0
16 16 0
15 15 0
14 14 0
13 13 0
13 13 0
13 13 0
12 12 0
12 12 0
12 12 0
12 12 0
12 12 0
11 11 0
11 11 0
11 11 0
11 11 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
10 10 0
9 9 0
9 9 0
9 9 0
9 9 0
9 9 0
8 8 0
8 8 0
8 8 0
8 8 0
8 8 0
8 8 0
8 8 0
7 7 0
7 7 0
7 7 0
7 7 0
7 7 0
7 7 0
7 7 0
6 6 0
6 6 0
6 6 0
6 6 0
6 6 0
6 6 0
6 6 0
6 6 0
5 5 0
5 5 0
5 5 0
5 5 0
5 5 0
5 5 0
5 5 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
4 4 0
3 3 0
3 3 0
3 3 0
3 3 0
3 3 0
3 3 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
2 2 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
1 1 0
Year:
Total:
Visual:
CCD:
2008 13 13 0
2007 66 66 0
2000 2 2 0
1999 81 81 0
1998 123 123 0
1997 217 217 0
1996 191 191 0
1995 84 84 0
1994 174 174 0
1993 70 70 0
1992 107 107 0
1991 91 91 0
1990 129 129 0
1989 83 83 0
1988 80 80 0
1987 70 70 0
1986 88 88 0
1985 129 129 0
1984 91 91 0
1983 155 155 0
1982 75 75 0
1981 99 99 0
1980 78 78 0
1979 27 27 0
1978 86 86 0
1977 68 68 0
1976 168 168 0
1975 77 77 0
1974 104 104 0
1973 79 79 0
1972 35 35 0
1971 30 30 0
1970 118 118 0
1969 25 25 0
1968 64 64 0
1967 2 2 0
1966 35 35 0
1965 18 18 0
1964 14 14 0
1963 4 4 0
1962 1 1 0
1960 11 11 0