COBS Statistics page

COBS Statistics:
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Observations statistics for COBS database

Total:
Number of active observers:
(total includes noncontributing observers)
2272 of 2570
Number of active associations:
(total includes noncontributing associations)
12 of 15
Number of active countries:
(total includes noncontributing countries)
68 of 250
Number of observed comets:
(total is number of comets in COBS database)
1201 of 1716
Total number of observations:
233473
- Visual Observations:
202817
- CCD Observations:
30656

Observed comets: (1201)
Total:
Visual:
CCD:
Short-period comets: (319)
81444 68479 12965
One-apparition Short-period comets: (148)
2065 1180 885
Long-period comets: (733)
149922 133128 16794

Most observed comets:
Total:
Visual:
CCD:
15613 15326 287
7207 7207 0
5358 5358 0
5064 5064 0
4835 3320 1515
4702 4449 253
3852 3621 231
3558 3255 303
3299 3156 143
3026 3026 0

Top observers:
Total:
Visual:
CCD:
6937 3452 3485
4902 4902 0
4758 2154 2604
4318 4318 0
3633 3633 0
3612 4 3608
3603 3603 0
3256 3256 0
3176 3176 0
3063 3063 0

Top Associations:
Total:
Visual:
CCD:
80845 74601 6244
44534 36695 7839
40055 34297 5758
21915 19593 2322
18445 10542 7903
10417 10417 0
8966 8966 0
3177 3177 0
1819 1673 146
1717 1538 179

Top Countries:
Total:
Visual:
CCD:
26075 25225 850
25910 23604 2306
23438 15173 8265
21508 13715 7793
19138 15194 3944
16531 16164 367
13755 13726 29
11239 8764 2475
10021 9837 184
8951 8951 0
Year:
Total:
Visual:
CCD:
2018 1249 525 724
2017 4805 2784 2021
2016 3624 2033 1591
2015 5196 3354 1842
2014 5721 3510 2211
2013 4758 3289 1469
2012 2516 1868 648
2011 4028 2883 1145
2010 4112 2660 1452
2009 3942 3153 789
2008 4065 3603 462
2007 6124 5273 851
2006 6677 5207 1470
2005 7203 5388 1815
2004 10570 8662 1908
2003 7133 4490 2643
2002 11686 9250 2436
2001 7705 6262 1443
2000 4176 2863 1313
1999 6987 5904 1083
1998 7333 6572 761
1997 12403 11925 478
1996 15916 15890 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 3895 3895 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