COBS Statistics page

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COBS Statistics:
Select Comet:

Observations statistics for VdS

Total:
Number of active observers:
(total includes noncontributing observers)
69 of 2531
Number of active countries:
(total includes noncontributing countries)
3 of 250
Number of observed comets:
(total is number of comets in COBS database)
459 of 1632
Total number of observations:
21034
- Visual Observations:
19260
- CCD Observations:
1774

Observed comets: (459)
Total:
Visual:
CCD:
Short-period comets: (147)
7143 6362 781
One-apparition Short-period comets: (35)
357 269 88
Long-period comets: (277)
13534 12629 905

Most observed comets:
Total:
Visual:
CCD:
1166 1166 0
584 584 0
555 471 84
512 512 0
497 497 0
443 443 0
429 429 0
413 348 65
397 397 0
380 288 92

Top observers:
Total:
Visual:
CCD:
2051 2051 0
1935 1935 0
1903 1903 0
1615 1571 44
1356 1356 0
1219 1219 0
1129 394 735
1109 1109 0
1045 126 919
817 816 1

Top Countries:
Total:
Visual:
CCD:
20563 18805 1758
351 351 0
120 104 16
Year:
Total:
Visual:
CCD:
2017 235 144 91
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 1275 1275 0
1993 489 489 0
1992 877 877 0
1991 568 568 0
1990 1066 1066 0
1989 582 582 0
1988 627 627 0
1987 539 539 0
1986 464 464 0
1985 595 595 0
1984 48 48 0
1983 38 38 0
1982 6 6 0
1981 4 4 0
1980 19 19 0
1977 2 2 0
1976 4 4 0
1975 26 26 0
1974 21 21 0
1973 2 2 0