COBS Statistics page

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

COBS Statistics:
Select Comet:

Observations statistics for COBS database

Total:
Number of active observers:
(total includes noncontributing observers)
2264 of 2535
Number of active associations:
(total includes noncontributing associations)
12 of 15
Number of active countries:
(total includes noncontributing countries)
69 of 250
Number of observed comets:
(total is number of comets in COBS database)
1170 of 1637
Total number of observations:
228796
- Visual Observations:
200228
- CCD Observations:
28568

Observed comets: (1170)
Total:
Visual:
CCD:
Short-period comets: (311)
79451 67390 12061
One-apparition Short-period comets: (143)
2058 1187 871
Long-period comets: (716)
147287 131651 15636

Most observed comets:
Total:
Visual:
CCD:
15592 15305 287
7209 7209 0
5359 5359 0
5070 5070 0
4669 4416 253
4611 3203 1408
3849 3618 231
3558 3255 303
3291 3148 143
3023 3023 0

Top observers:
Total:
Visual:
CCD:
7008 3452 3556
4902 4902 0
4758 2154 2604
4300 4300 0
3633 3633 0
3535 3535 0
3262 3262 0
3171 3171 0
3070 0 3070
3037 3037 0

Top Associations:
Total:
Visual:
CCD:
79474 73942 5532
43033 35573 7460
39632 34120 5512
21159 19351 1808
18314 10477 7837
10411 10411 0
8828 8828 0
3172 3172 0
1791 1612 179
1516 1507 9

Top Countries:
Total:
Visual:
CCD:
25851 25175 676
25022 23230 1792
23026 14930 8096
21308 13581 7727
18135 14986 3149
16286 15978 308
13713 13706 7
11160 8693 2467
9611 9427 184
8813 8813 0
Year:
Total:
Visual:
CCD:
2017 1582 970 612
2016 3208 1664 1544
2015 5183 3355 1828
2014 5762 3509 2253
2013 4738 3289 1449
2012 2512 1865 647
2011 4016 2875 1141
2010 4111 2659 1452
2009 3942 3153 789
2008 4060 3598 462
2007 6115 5264 851
2006 6677 5207 1470
2005 7161 5346 1815
2004 10536 8628 1908
2003 7212 4499 2713
2002 11700 9252 2448
2001 7730 6280 1450
2000 4178 2865 1313
1999 6987 5904 1083
1998 7363 6602 761
1997 12413 11935 478
1996 15919 15893 26
1995 4333 4294 39
1994 7485 7465 20
1993 3148 3133 15
1992 6054 6053 1
1991 3937 3937 0
1990 9696 9696 0
1989 4127 4127 0
1988 3911 3911 0
1987 4905 4905 0
1986 5127 5127 0
1985 5512 5512 0
1984 1805 1805 0
1983 2704 2704 0
1982 2211 2211 0
1981 1886 1886 0
1980 1941 1941 0
1979 176 176 0
1978 520 520 0
1977 1227 1227 0
1976 1053 1053 0
1975 1280 1280 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 861 861 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