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)
106 of 2669
Number of active countries:
(total includes noncontributing countries)
28 of 250
Number of observed comets:
(total is number of comets in COBS database)
907 of 1783
Total number of observations:
44240
- Visual Observations:
35999
- CCD Observations:
8241

Observed comets: (907)
Total:
Visual:
CCD:
Short-period comets: (280)
17322 13141 4181
One-apparition Short-period comets: (83)
503 275 228
Long-period comets: (543)
26405 22578 3827

Most observed comets:
Total:
Visual:
CCD:
2154 2154 0
1191 776 415
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
3677 3677 0
2996 2996 0
2649 2286 363
2639 2427 212
2121 2121 0
2017 2017 0
1920 1920 0
1851 1837 14
1786 1786 0

Top Countries:
Total:
Visual:
CCD:
11355 8875 2480
6276 5862 414
5463 2466 2997
3983 3969 14
3739 2355 1384
3678 3678 0
2996 2996 0
2300 1766 534
1786 1786 0
1307 1299 8
Year:
Total:
Visual:
CCD:
2019 417 271 146
2018 1693 1278 415
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 1655 1259 396
2002 2493 2125 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