Citizen Science Contributor
Donald E. Machholz
Visual Observer · Visual Observer · ICQ MAC
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
- 507
- Objects
- 39
- Last report
- 7063d ago
Reported objects
- 138
1P
1P/Halley · Visual Observer
- 74
96P
96P/Machholz · Visual Observer
- 22
21P
21P/Giacobini-Zinner · Visual Observer
- 20
C/1988 P1
C/1988 P1 (Machholz) · Visual Observer
- 18
C/1978 R3
C/1978 R3 (Machholz) · Visual Observer
- 15
38P
38P/Stephan-Oterma · Visual Observer
- 15
C/1992 N1
C/1992 N1 (Machholz) · Visual Observer
- 14
23P
23P/Brorsen-Metcalf · Visual Observer
- 14
C/1985 K1
C/1985 K1 (Machholz) · Visual Observer
- 13
22P
22P/Kopff · Visual Observer
- 13
C/1984 N1
C/1984 N1 (Austin) · Visual Observer
- 12
C/1983 O1
C/1983 O1 (Cernis) · Visual Observer
- 11
8P
8P/Tuttle · Visual Observer
- 11
C/1985 R1
C/1985 R1 (Hartley-Good) · Visual Observer
- 10
C/1984 V1
C/1984 V1 (Levy-Rudenko) · Visual Observer
- 9
C/1983 J1
C/1983 J1 (Sugano-Saigusa-Fujikawa) · Visual Observer
- 9
C/1986 V1
C/1986 V1 (Sorrells) · Visual Observer
- 8
C/1980 V1
C/1980 V1 (Meier) · Visual Observer
- 8
C/1985 T1
C/1985 T1 (Thiele) · Visual Observer
- 7
2P
2P/Encke · Visual Observer
- 7
98P
98P/Takamizawa · Visual Observer
- 7
C/1992 F1
C/1992 F1 (Tanaka-Machholz) · Visual Observer
- 6
C/1980 Y2
C/1980 Y2 (Panther) · Visual Observer
- 6
C/1983 H1
C/1983 H1 (IRAS-Araki-Alcock) · Visual Observer
- 6
C/1986 P1
C/1986 P1 (Wilson) · Visual Observer
- 5
9P
9P/Tempel · Visual Observer
- 4
C/1980 Y1
C/1980 Y1 (Bradfield) · Visual Observer
- 4
C/1982 M1
C/1982 M1 (Austin) · Visual Observer
- 3
27P
27P/Crommelin · Visual Observer
- 3
C/1979 M1
C/1979 M1 (Bradfield) · Visual Observer
- 3
C/1987 B1
C/1987 B1 (Nishikawa-Takamizawa-Tago) · Visual Observer
- 2
19P
19P/Borrelly · Visual Observer
- 2
C/1978 H1
C/1978 H1 (Meier) · Visual Observer
- 2
C/1980 O1
C/1980 O1 (Cernis-Petrauskas) · Visual Observer
- 2
C/1989 Q1
C/1989 Q1 (Okazaki-Levy-Rudenko) · Visual Observer
- 1
24P
24P/Schaumasse · Visual Observer
- 1
C/1979 Y1
C/1979 Y1 (Bradfield) · Visual Observer
- 1
C/1987 B2
C/1987 B2 (Terasako) · Visual Observer
- 1
C/1987 P1
C/1987 P1 (Bradfield) · Visual Observer