COBS Statistics page

COBS Statistics:
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Observations statistics for VdS

Total:
Number of active observers:
(total includes noncontributing observers)
71 of 2621
Number of active countries:
(total includes noncontributing countries)
3 of 250
Number of observed comets:
(total is number of comets in COBS database)
492 of 1744
Total number of observations:
21790
- Visual Observations:
19085
- CCD Observations:
2705

Observed comets: (492)
Total:
Visual:
CCD:
Short-period comets: (151)
7661 6476 1185
One-apparition Short-period comets: (35)
336 248 88
Long-period comets: (305)
13775 12350 1425

Most observed comets:
Total:
Visual:
CCD:
1062 1062 0
567 567 0
564 480 84
509 509 0
486 486 0
438 366 72
422 422 0
400 335 65
392 392 0
368 276 92

Top observers:
Total:
Visual:
CCD:
2100 2100 0
1927 1927 0
1678 1627 51
1667 126 1541
1393 1393 0
1351 1351 0
1267 1267 0
1168 1167 1
1129 394 735
879 879 0

Top Countries:
Total:
Visual:
CCD:
21445 18756 2689
219 219 0
126 110 16
Year:
Total:
Visual:
CCD:
2018 1110 481 629
2017 871 478 393
2016 690 356 334
2015 1176 847 329
2014 780 640 140
2013 600 527 73
2012 353 346 7
2011 457 445 12
2010 986 356 630
2009 478 321 157
2008 213 212 1
2007 216 216 0
2006 348 348 0
2005 458 458 0
2004 423 423 0
2003 359 359 0
2002 674 674 0
2001 369 369 0
2000 221 221 0
1999 576 576 0
1998 677 677 0
1997 1092 1092 0
1996 1300 1300 0
1995 364 364 0
1994 1222 1222 0
1993 456 456 0
1992 854 854 0
1991 539 539 0
1990 1019 1019 0
1989 540 540 0
1988 617 617 0
1987 523 523 0
1986 453 453 0
1985 582 582 0
1984 47 47 0
1983 38 38 0
1982 6 6 0
1981 4 4 0
1980 19 19 0
1977 7 7 0
1976 18 18 0
1975 32 32 0
1974 21 21 0
1973 2 2 0