COBS Statistics page

COBS Statistics:
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Observations statistics for COBS database

Total:
Number of active observers:
(total includes noncontributing observers)
2320 of 2630
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)
1226 of 1761
Total number of observations:
238470
- Visual Observations:
205978
- CCD Observations:
32492

Observed comets: (1226)
Total:
Visual:
CCD:
Short-period comets: (327)
84888 70723 14165
One-apparition Short-period comets: (149)
2059 1167 892
Long-period comets: (749)
151481 134058 17423

Most observed comets:
Total:
Visual:
CCD:
15509 15222 287
7206 7206 0
5350 5350 0
5230 5230 0
5132 3463 1669
4672 4419 253
3827 3596 231
3550 3247 303
3283 3140 143
3126 2764 362

Top observers:
Total:
Visual:
CCD:
6937 3452 3485
4902 4902 0
4758 2154 2604
4318 4318 0
4069 5 4064
3653 3653 0
3633 3633 0
3256 3256 0
3191 3191 0
3063 3063 0

Top Associations:
Total:
Visual:
CCD:
78949 72116 6833
46191 40326 5865
43932 35811 8121
22089 19262 2827
18714 10611 8103
10452 10452 0
9269 9269 0
3191 3191 0
1979 1791 188
1717 1538 179

Top Countries:
Total:
Visual:
CCD:
26371 23553 2818
26297 25283 1014
23765 15380 8385
21823 13830 7993
19860 15321 4539
17141 16737 404
13834 13793 41
11450 8892 2558
10665 10481 184
9254 9254 0
Year:
Total:
Visual:
CCD:
2019 577 383 194
2018 5321 3024 2297
2017 4944 2920 2024
2016 3672 2080 1592
2015 5236 3389 1847
2014 5697 3485 2212
2013 4814 3296 1518
2012 2553 1901 652
2011 4057 2912 1145
2010 4219 2767 1452
2009 4056 3267 789
2008 4102 3640 462
2007 6131 5279 852
2006 6739 5265 1474
2005 7164 5348 1816
2004 10556 8648 1908
2003 7137 4494 2643
2002 11622 9186 2436
2001 7686 6243 1443
2000 4166 2853 1313
1999 6941 5858 1083
1998 7273 6512 761
1997 12296 11818 478
1996 16033 16007 26
1995 4327 4288 39
1994 7432 7412 20
1993 3111 3096 15
1992 6037 6036 1
1991 3913 3913 0
1990 9658 9658 0
1989 4084 4084 0
1988 3920 3920 0
1987 4886 4886 0
1986 5116 5116 0
1985 5493 5493 0
1984 1805 1805 0
1983 2710 2710 0
1982 2203 2203 0
1981 1903 1903 0
1980 1947 1947 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