Comets discovered by Tsutomu Seki

No Name of Comets Date of Discovery Magnitude Instruments
1 Seki Oct 10, 1961 7 9cm 15X
2 Seki-Lines Feb. 4, 1962 9 9cm 17X
3 Ikeya-Seki Sep. 18, 1965 8 9cm 17X
4 Seki 2 Feb. 4, 1967 11 12cm binoculars
5 Ikeya-Seki 2 Dec. 28, 1967 9 12cm binoculars
6 Suzuki-Sato-Seki Oct. 20, 1970 6 12cm binoculars


Periodic comets recovered and re-discovered by Tsutomu Seki

As of February 1, 1999

As of February 1, 1999, Tsutomu Seki had discovered 28 periodic comets,
which was more than any Japanese observer had achieved.

No Name of Comets Date of Re-discovery Magnitude Instruments
1 Finlay June 24, 1974 15 21cm refl. F5
2 Wolf-Harrington July 11, 1977 17 40cm refl. F5
3 Tsuchinshan 2 Oct. 29, 1978 18 40cm refl. F5
4 Clark Apr. 13, 1978 18 40cm refl. F5
5 Tuttle-Giacobini-Kresak Nov. 8, 1978 16 40cm refl. F5
6 Honda-Mrkos-Pajdusakova May 1, 1980 15 40cm refl. F5
7 Longmore Jan. 2, 1981 18 60cm refl. F3.5
8 Tempel 1 Dec. 11, 1982 19 60cm refl. F3.5
9 Pons-Winnecke Jan. 12, 1983 19 60cm refl. F3.5
10 Arend-Rigaux Aug. 7, 1984 18 60cm refl. F3.5
11 Tsuchinshan 1 Sep. 4, 1984 21 60cm refl. F3.5
12 Giclas June 22, 1985 19 60cm refl. F3.5
13 West-Kohoutek-Ikemura Sep. 27, 1987 17 60cm refl. F3.5
14 du-Toit-Neujimin-Delporte May 22, 1989 19 60cm refl. F3.5
15 Lovas 1 July 5, 1989 18 60cm refl. F3.5
16 Swift-Gehrels Jan. 7, 1991 17 60cm refl. F3.5
17 Wirtanen July 8, 1991 17 60cm refl. F3.5
18 Arend Aug. 1, 1991 18 60cm refl. F3.5
19 Tsuchinshan 1 Nov. 8, 1991 17 60cm refl. F3.5
20 Faye Apr. 16, 1991 19 60cm refl. F3.5
21 Giclas June 30, 1992 19 60cm refl. F3.5
22 Wolf July 10, 1992 20 60cm refl. F3.5
23 Schuster July 28, 1992 18 60cm refl. F3.5
24 Daniel July 29, 1992 19 60cm refl. F3.5
25 Schaumasse Sep. 25, 1992 20 60cm refl. F3.5
26 Holmes May 24, 1993 18 60cm refl. F3.5
27 Brooks 2 May 6, 1994 18 60cm refl. F3.5
28 de Vico Sep. 17, 1995 6 20cm refract. F12


Copyright (C) 2002 Tsutomu Seki.