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)
2269 of 2558
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)
1189 of 1695
Total number of observations:
232114
- Visual Observations:
202109
- CCD Observations:
30005

Observed comets: (1189)
Total:
Visual:
CCD:
Short-period comets: (315)
80789 68109 12680
One-apparition Short-period comets: (145)
2062 1188 874
Long-period comets: (728)
149221 132782 16439

Most observed comets:
Total:
Visual:
CCD:
15597 15310 287
7207 7207 0
5358 5358 0
5070 5070 0
4805 3296 1509
4702 4449 253
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
4314 4314 0
3633 3633 0
3589 3589 0
3397 3 3394
3262 3262 0
3176 3176 0
3070 0 3070

Top Associations:
Total:
Visual:
CCD:
80375 74346 6029
44132 36403 7729
40022 34273 5749
21562 19474 2088
18486 10539 7947
10428 10428 0
8956 8956 0
3177 3177 0
1791 1612 179
1642 1596 46

Top Countries:
Total:
Visual:
CCD:
25989 25218 771
25540 23468 2072
23381 15147 8234
21534 13697 7837
18882 15156 3726
16492 16141 351
13756 13734 22
11228 8756 2472
9917 9733 184
8941 8941 0
Year:
Total:
Visual:
CCD:
2018 134 78 56
2017 4781 2763 2018
2016 3272 1716 1556
2015 5183 3354 1829
2014 5720 3509 2211
2013 4737 3289 1448
2012 2517 1869 648
2011 4027 2882 1145
2010 4111 2659 1452
2009 3942 3153 789
2008 4060 3598 462
2007 6117 5266 851
2006 6678 5208 1470
2005 7202 5387 1815
2004 10570 8662 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 12417 11939 478
1996 15928 15902 26
1995 4334 4295 39
1994 7485 7465 20
1993 3148 3133 15
1992 6054 6053 1
1991 3939 3939 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 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 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