COBS Statistics page

COBS Statistics:
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Observations statistics for VdS

Total:
Number of active observers:
(total includes noncontributing observers)
71 of 2630
Number of active countries:
(total includes noncontributing countries)
3 of 250
Number of observed comets:
(total is number of comets in COBS database)
495 of 1761
Total number of observations:
22089
- Visual Observations:
19262
- CCD Observations:
2827

Observed comets: (495)
Total:
Visual:
CCD:
Short-period comets: (152)
7867 6604 1263
One-apparition Short-period comets: (35)
336 248 88
Long-period comets: (307)
13868 12399 1469

Most observed comets:
Total:
Visual:
CCD:
1061 1061 0
567 567 0
564 480 84
509 509 0
486 486 0
444 368 76
422 422 0
401 336 65
392 392 0
368 276 92

Top observers:
Total:
Visual:
CCD:
2107 2107 0
1927 1927 0
1751 126 1625
1688 1636 52
1414 1414 0
1351 1351 0
1276 1276 0
1195 1194 1
1129 394 735
930 930 0

Top Countries:
Total:
Visual:
CCD:
21744 18933 2811
219 219 0
126 110 16
Year:
Total:
Visual:
CCD:
2019 165 95 70
2018 1202 521 681
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 1091 1091 0
1996 1299 1299 0
1995 367 367 0
1994 1219 1219 0
1993 456 456 0
1992 854 854 0
1991 539 539 0
1990 1019 1019 0
1989 541 541 0
1988 616 616 0
1987 524 524 0
1986 453 453 0
1985 584 584 0
1984 48 48 0
1983 44 44 0
1982 16 16 0
1981 21 21 0
1980 26 26 0
1977 7 7 0
1976 18 18 0
1975 32 32 0
1974 21 21 0
1973 2 2 0