COBS Statistics page

COBS Statistics:
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Observations statistics for VdS

Total:
Number of active observers:
(total includes noncontributing observers)
70 of 2564
Number of active countries:
(total includes noncontributing countries)
3 of 250
Number of observed comets:
(total is number of comets in COBS database)
476 of 1710
Total number of observations:
21763
- Visual Observations:
19544
- CCD Observations:
2219

Observed comets: (476)
Total:
Visual:
CCD:
Short-period comets: (149)
7371 6454 917
One-apparition Short-period comets: (35)
350 262 88
Long-period comets: (291)
14024 12817 1207

Most observed comets:
Total:
Visual:
CCD:
1166 1166 0
575 575 0
555 471 84
511 511 0
479 479 0
443 443 0
427 427 0
404 339 65
397 397 0
375 283 92

Top observers:
Total:
Visual:
CCD:
2073 2073 0
1927 1927 0
1927 1927 0
1649 1602 47
1400 126 1274
1351 1351 0
1247 1247 0
1143 1143 0
1129 394 735
972 971 1

Top Countries:
Total:
Visual:
CCD:
21418 19215 2203
219 219 0
126 110 16
Year:
Total:
Visual:
CCD:
2018 228 85 143
2017 871 478 393
2016 683 349 334
2015 1158 829 329
2014 816 676 140
2013 615 542 73
2012 354 347 7
2011 457 445 12
2010 984 354 630
2009 487 330 157
2008 231 230 1
2007 255 255 0
2006 395 395 0
2005 514 514 0
2004 464 464 0
2003 384 384 0
2002 739 739 0
2001 390 390 0
2000 236 236 0
1999 634 634 0
1998 738 738 0
1997 1198 1198 0
1996 1436 1436 0
1995 379 379 0
1994 1267 1267 0
1993 489 489 0
1992 874 874 0
1991 554 554 0
1990 1029 1029 0
1989 539 539 0
1988 602 602 0
1987 521 521 0
1986 454 454 0
1985 593 593 0
1984 48 48 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