Citizen Science Contributor
Henryk Sielewicz
Visual Observer · Visual Observer · ICQ SIE
Counts come from COBS observations and published discoverer names. They are not editable. This is a source profile, not a Venator login. Claiming a page comes later with accounts.
- Reports
- 243
- Objects
- 21
- Last report
- 7839d ago
Reported objects
- 45
C/2004 Q2
C/2004 Q2 (Machholz) · Visual Observer
- 37
C/1995 O1
C/1995 O1 (Hale-Bopp) · Visual Observer
- 27
C/2001 Q4
C/2001 Q4 (NEAT) · Visual Observer
- 22
153P
153P/Ikeya-Zhang · Visual Observer
- 22
C/2002 C1
C/2002 C1 (Ikeya-Zhang) · Visual Observer
- 20
109P
109P/Swift-Tuttle · Visual Observer
- 15
C/2000 WM1
C/2000 WM1 (LINEAR) · Visual Observer
- 9
C/2001 A2
C/2001 A2 (LINEAR) · Visual Observer
- 8
122P
122P/de Vico · Visual Observer
- 8
C/2003 K4
C/2003 K4 (LINEAR) · Visual Observer
- 8
P/1995 S1
P/1995 S1 (de Vico) · Visual Observer
- 6
23P
23P/Brorsen-Metcalf · Visual Observer
- 5
C/1995 Q1
C/1995 Q1 (Bradfield) · Visual Observer
- 3
C/1999 S4
C/1999 S4 (LINEAR) · Visual Observer
- 2
C/1997 T1
C/1997 T1 (Utsunomiya) · Visual Observer
- 1
103P
103P/Hartley · Visual Observer
- 1
55P
55P/Tempel-Tuttle · Visual Observer
- 1
C/2001 OG108
C/2001 OG108 (LONEOS) · Visual Observer
- 1
C/2002 F1
C/2002 F1 (Utsunomiya) · Visual Observer
- 1
C/2002 O4
C/2002 O4 (Hoenig) · Visual Observer
- 1
C/2002 O6
C/2002 O6 (SWAN) · Visual Observer