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 VdS

Total:
Number of active observers:
(total includes noncontributing observers)
70 of 2558
Number of active countries:
(total includes noncontributing countries)
3 of 250
Number of observed comets:
(total is number of comets in COBS database)
474 of 1695
Total number of observations:
21562
- Visual Observations:
19474
- CCD Observations:
2088

Observed comets: (474)
Total:
Visual:
CCD:
Short-period comets: (149)
7340 6459 881
One-apparition Short-period comets: (35)
358 270 88
Long-period comets: (289)
13846 12734 1112

Most observed comets:
Total:
Visual:
CCD:
1166 1166 0
575 575 0
555 471 84
511 511 0
479 479 0
443 443 0
429 429 0
404 339 65
397 397 0
380 288 92

Top observers:
Total:
Visual:
CCD:
2072 2072 0
1927 1927 0
1926 1926 0
1643 1596 47
1356 1356 0
1311 126 1185
1249 1249 0
1129 394 735
1118 1118 0
930 929 1

Top Countries:
Total:
Visual:
CCD:
21200 19128 2072
236 236 0
126 110 16
Year:
Total:
Visual:
CCD:
2018 29 17 12
2017 869 476 393
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 1275 1275 0
1993 489 489 0
1992 877 877 0
1991 568 568 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 2 2 0
1976 4 4 0
1975 26 26 0
1974 21 21 0
1973 2 2 0