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)
100 of 2585
Number of active countries:
(total includes noncontributing countries)
27 of 250
Number of observed comets:
(total is number of comets in COBS database)
891 of 1722
Total number of observations:
42388
- Visual Observations:
34452
- CCD Observations:
7936

Observed comets: (891)
Total:
Visual:
CCD:
Short-period comets: (280)
16187 12219 3968
One-apparition Short-period comets: (83)
503 275 228
Long-period comets: (527)
25688 21953 3735

Most observed comets:
Total:
Visual:
CCD:
2154 2154 0
1113 722 391
711 708 3
645 645 0
629 593 36
625 623 2
599 599 0
596 567 29
570 549 21
570 555 15

Top observers:
Total:
Visual:
CCD:
4758 2154 2604
3609 3609 0
2760 2760 0
2649 2286 363
2524 2312 212
2017 2017 0
1900 1900 0
1785 1785 0
1784 1784 0
1701 306 1395

Top Countries:
Total:
Visual:
CCD:
11252 8763 2489
5949 5581 368
5361 2416 2945
3739 2355 1384
3610 3610 0
3570 3556 14
2760 2760 0
2200 1765 435
1785 1785 0
1019 1019 0
Year:
Total:
Visual:
CCD:
2018 766 545 221
2017 1285 874 411
2016 1101 739 362
2015 1603 1189 414
2014 1707 874 833
2013 1047 712 335
2012 554 397 157
2011 1300 413 887
2010 921 555 366
2009 965 908 57
2008 1054 941 113
2007 1174 1056 118
2006 1875 1207 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