COBS Statistics page

COBS Statistics:
Select Comet:

Click Submit to distplay statistics for the complete database or select a comet from the list for individual comet observations statistics.

Observations statistics for COBS database

Total:
Number of active observers:
(total includes noncontributing observers)
2308 of 2585
Number of active associations:
(total includes noncontributing associations)
16 of 16
Number of active countries:
(total includes noncontributing countries)
68 of 250
Number of observed comets:
(total is number of comets in COBS database)
1206 of 1722
Total number of observations:
234933
- Visual Observations:
203929
- CCD Observations:
31004

Observed comets: (1206)
Total:
Visual:
CCD:
Short-period comets: (319)
82029 68906 13123
One-apparition Short-period comets: (148)
2065 1180 885
Long-period comets: (738)
150797 133813 16984

Most observed comets:
Total:
Visual:
CCD:
15613 15326 287
7207 7207 0
5358 5358 0
5261 5261 0
4895 3360 1535
4723 4470 253
3853 3622 231
3568 3265 303
3313 3170 143
3026 3026 0

Top observers:
Total:
Visual:
CCD:
6937 3452 3485
4902 4902 0
4758 2154 2604
4318 4318 0
3651 4 3647
3633 3633 0
3609 3609 0
3256 3256 0
3176 3176 0
3063 3063 0

Top Associations:
Total:
Visual:
CCD:
78186 71886 6300
45747 39986 5761
42388 34452 7936
22084 19677 2407
18454 10550 7904
10422 10422 0
8991 8991 0
3176 3176 0
1836 1690 146
1717 1538 179

Top Countries:
Total:
Visual:
CCD:
26181 25239 942
26079 23688 2391
23446 15181 8265
21523 13729 7794
19247 15220 4027
16823 16455 368
13771 13739 32
11310 8805 2505
10264 10080 184
8976 8976 0
Year:
Total:
Visual:
CCD:
2018 2142 1138 1004
2017 4826 2803 2023
2016 3630 2038 1592
2015 5215 3368 1847
2014 5733 3521 2212
2013 4829 3311 1518
2012 2526 1874 652
2011 4036 2891 1145
2010 4120 2668 1452
2009 3950 3161 789
2008 4076 3614 462
2007 6149 5297 852
2006 6711 5237 1474
2005 7220 5404 1816
2004 10597 8689 1908
2003 7162 4519 2643
2002 11687 9251 2436
2001 7707 6264 1443
2000 4181 2868 1313
1999 6997 5914 1083
1998 7333 6572 761
1997 12403 11925 478
1996 16148 16122 26
1995 4333 4294 39
1994 7474 7454 20
1993 3140 3125 15
1992 6056 6055 1
1991 3928 3928 0
1990 9668 9668 0
1989 4082 4082 0
1988 3906 3906 0
1987 4883 4883 0
1986 5117 5117 0
1985 5507 5507 0
1984 1805 1805 0
1983 2704 2704 0
1982 2193 2193 0
1981 1886 1886 0
1980 1940 1940 0
1979 176 176 0
1978 520 520 0
1977 1232 1232 0
1976 1067 1067 0
1975 1286 1286 0
1974 1295 1295 0
1973 415 415 0
1972 170 170 0
1971 145 145 0
1970 1746 1746 0
1969 128 128 0
1968 860 860 0
1967 249 249 0
1966 424 424 0
1965 274 274 0
1964 405 405 0
1963 560 560 0
1962 546 546 0
1961 233 233 0
1960 272 272 0
1959 206 206 0
1958 84 84 0
1957 637 637 0
1956 148 148 0
1955 448 448 0
1954 347 347 0
1953 182 182 0
1952 314 314 0
1951 186 186 0
1950 100 100 0
1949 156 156 0
1948 557 557 0
1947 149 149 0
1946 112 112 0
1945 30 30 0
1944 1 1 0
1943 274 274 0
1942 16 16 0
1941 105 105 0
1940 62 62 0
1939 35 35 0
1937 107 107 0
1936 42 42 0
1935 12 12 0
1933 40 40 0
1932 45 45 0
1927 2 2 0
1919 21 21 0
1911 39 39 0
1910 382 382 0
1909 76 76 0
1901 10 10 0
1886 3 3 0
1884 2 2 0