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

Total:
Number of active observers:
(total includes noncontributing observers)
107 of 2633
Number of active countries:
(total includes noncontributing countries)
28 of 250
Number of observed comets:
(total is number of comets in COBS database)
903 of 1763
Total number of observations:
44084
- Visual Observations:
35936
- CCD Observations:
8148

Observed comets: (903)
Total:
Visual:
CCD:
Short-period comets: (280)
17253 13121 4132
One-apparition Short-period comets: (83)
503 275 228
Long-period comets: (539)
26318 22535 3783

Most observed comets:
Total:
Visual:
CCD:
2154 2154 0
1183 775 408
711 708 3
704 584 120
645 645 0
629 593 36
625 623 2
599 599 0
596 567 29
591 571 20

Top observers:
Total:
Visual:
CCD:
4758 2154 2604
3668 3668 0
2996 2996 0
2649 2286 363
2639 2427 212
2098 2098 0
2017 2017 0
1913 1913 0
1851 1837 14
1786 1786 0

Top Countries:
Total:
Visual:
CCD:
11346 8867 2479
6266 5855 411
5410 2450 2960
3960 3946 14
3739 2355 1384
3671 3670 1
2996 2996 0
2268 1766 502
1786 1786 0
1306 1299 7
Year:
Total:
Visual:
CCD:
2019 276 213 63
2018 1678 1273 405
2017 1359 969 390
2016 1100 747 353
2015 1598 1189 409
2014 1707 874 833
2013 1091 756 335
2012 581 424 157
2011 1317 430 887
2010 1018 652 366
2009 1080 1023 57
2008 1098 985 113
2007 1195 1077 118
2006 1950 1282 668
2005 1217 1049 168
2004 2070 1583 487
2003 1656 1260 396
2002 2492 2124 368
2001 1691 1462 229
2000 1111 766 345
1999 1614 1320 294
1998 1851 1526 325
1997 2005 1723 282
1996 2379 2354 25
1995 897 858 39
1994 1200 1180 20
1993 463 448 15
1992 673 672 1
1991 444 444 0
1990 993 993 0
1989 635 635 0
1988 496 496 0
1987 551 551 0
1986 574 574 0
1985 589 589 0
1984 203 203 0
1983 330 330 0
1982 229 229 0
1981 244 244 0
1980 163 163 0
1979 6 6 0
1978 5 5 0
1977 58 58 0
1976 83 83 0
1975 68 68 0
1974 39 39 0
1973 4 4 0
1970 3 3 0