Citizen Science Contributor
Akiyoshi Ishikawa
Visual Observer · Visual Observer · ICQ ISH02
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
- 1134
- Objects
- 63
- Last report
- 10835d ago
Reported objects
- 93
1P
1P/Halley · Visual Observer
- 78
C/1987 P1
C/1987 P1 (Bradfield) · Visual Observer
- 60
109P
109P/Swift-Tuttle · Visual Observer
- 60
C/1996 B2
C/1996 B2 (Hyakutake) · Visual Observer
- 54
19P
19P/Borrelly · Visual Observer
- 47
C/1988 A1
C/1988 A1 (Liller) · Visual Observer
- 43
67P
67P/Churyumov-Gerasimenko · Visual Observer
- 35
24P
24P/Schaumasse · Visual Observer
- 35
C/1990 K1
C/1990 K1 (Levy) · Visual Observer
- 34
C/1989 W1
C/1989 W1 (Aarseth-Brewington) · Visual Observer
- 34
C/1989 X1
C/1989 X1 (Austin) · Visual Observer
- 33
C/1989 Q1
C/1989 Q1 (Okazaki-Levy-Rudenko) · Visual Observer
- 32
C/1987 U3
C/1987 U3 (McNaught) · Visual Observer
- 27
38P
38P/Stephan-Oterma · Visual Observer
- 26
C/1986 V1
C/1986 V1 (Sorrells) · Visual Observer
- 24
122P
122P/de Vico · Visual Observer
- 24
4P
4P/Faye · Visual Observer
- 24
P/1995 S1
P/1995 S1 (de Vico) · Visual Observer
- 22
C/1984 V1
C/1984 V1 (Levy-Rudenko) · Visual Observer
- 21
C/1985 R1
C/1985 R1 (Hartley-Good) · Visual Observer
- 20
21P
21P/Giacobini-Zinner · Visual Observer
- 19
27P
27P/Crommelin · Visual Observer
- 19
C/1995 O1
C/1995 O1 (Hale-Bopp) · Visual Observer
- 17
C/1991 Y1
C/1991 Y1 (Zanotta-Brewington) · Visual Observer
- 15
C/1987 B1
C/1987 B1 (Nishikawa-Takamizawa-Tago) · Visual Observer
- 13
C/1980 Y2
C/1980 Y2 (Panther) · Visual Observer
- 13
C/1986 P1
C/1986 P1 (Wilson) · Visual Observer
- 13
C/1987 B2
C/1987 B2 (Terasako) · Visual Observer
- 12
2P
2P/Encke · Visual Observer
- 12
8P
8P/Tuttle · Visual Observer
- 11
97P
97P/Metcalf-Brewington · Visual Observer
- 10
23P
23P/Brorsen-Metcalf · Visual Observer
- 10
C/1985 T1
C/1985 T1 (Thiele) · Visual Observer
- 10
C/1990 N1
C/1990 N1 (Tsuchiya-Kiuchi) · Visual Observer
- 9
103P
103P/Hartley · Visual Observer
- 9
C/1982 M1
C/1982 M1 (Austin) · Visual Observer
- 9
C/1987 W2
C/1987 W2 (Furuyama) · Visual Observer
- 8
C/1987 A1
C/1987 A1 (Levy) · Visual Observer
- 8
C/1987 Q1
C/1987 Q1 (Rudenko) · Visual Observer
- 7
22P
22P/Kopff · Visual Observer
1–40 of 63