Tsutomu Seki

Asteroids disc : 225
2396 Kochi	February 9, 1981
2571 Geisei	October 23, 1981
2582 Harimaya-Bashi	September 26, 1981
2621 Goto	February 9, 1981
2835 Ryoma	November 20, 1982
2880 Nihondaira	February 8, 1983
2961 Katsurahama	December 7, 1982
3150 Tosa	February 11, 1983
3182 Shimanto	November 27, 1984
3262 Miune	November 28, 1983
3431 Nakano	August 24, 1984
3785 Kitami	November 30, 1986
3822 Segovia	February 21, 1988
3851 Alhambra	October 30, 1986
3914 Kotogahama	September 16, 1987
3935 Toatenmongakkai	August 14, 1987
4039 Souseki	September 17, 1987
4095 Ishizuchisan	September 16, 1987
4097 Tsurugisan	November 18, 1987
4101 Ruikou	February 8, 1988
4223 Shikoku	May 7, 1988
4256 Kagamigawa	October 3, 1986
4290 Heisei	October 30, 1989
4399 Ashizuri	October 21, 1984
4411 Kochibunkyo	January 3, 1990
4439 Muroto	November 2, 1984
4441 Toshie	January 26, 1985
4496 Kamimachi	December 9, 1988
4498 Shinkoyama	January 5, 1989
4505 Okamura	February 20, 1990
4578 Kurashiki	December 7, 1988
4606 Saheki	October 27, 1987
4639 Minox	March 5, 1989
4670 Yoshinogawa	December 19, 1987
4675 Ohboke	September 19, 1990
4841 Manjiro	October 28, 1989
4865 Sor	October 18, 1988
5058 Tarrega	July 28, 1987
5113 Kohno	January 19, 1988
5124 Muraoka	February 4, 1989
5141 Tachibana	December 16, 1990
5179 Takeshima	March 1, 1989
(5209) 1989 CW1	February 13, 1989
5815 Shinsengumi	January 3, 1989
5823 Oryo	December 20, 1989
5824 Inagaki	December 24, 1989
5862 Sakanoue	January 13, 1983
5915 Yoshihiro	March 9, 1991
5962 Shikokutenkyo	April 18, 1990
5966 Tomeko	November 15, 1990
5969 Ryuichiro	March 17, 1991
6088 Hoshigakubo	October 18, 1988
6237 Chikushi	February 4, 1989
6244 Okamoto	August 20, 1990
6302 Tengukogen	February 2, 1989
6399 Harada	April 3, 1991
6449 Kudara	February 7, 1991
6458 Nouda	October 2, 1992
6497 Yamasaki	October 27, 1992
6514 Torahiko	November 25, 1987
6606 Makino	October 16, 1990
6660 Matsumoto	January 16, 1993
6699 Igaueno	December 19, 1987
6720 Gifu	November 11, 1990
6925 Susumu	October 24, 1993
6965 Niyodogawa	November 11, 1990
6971 Omogokei	February 8, 1992
7017 Uradowan	February 1, 1992
7094 Godaisan	September 4, 1992
7125 Eitarodate	February 7, 1991
7235 Hitsuzan	October 30, 1986
7274 Washioyama	March 21, 1982
7287 Yokokurayama	November 10, 1990
7289 Kamegamori	May 5, 1991
7410 Kawazoe	August 20, 1990
7415 Susumuimoto	November 14, 1990
7463 Oukawamine	September 20, 1985
7594 Shotaro	January 19, 1993
7650 Kaname	October 16, 1990
7693 Hoshitakuhai	November 20, 1982
8083 Mayeda	November 1, 1988
8163 Ishizaki	October 27, 1990
8234 Nobeoka	November 3, 1997
8367 Bokusui	October 23, 1990
8375 Kenzokohno	January 12, 1992
8387 Fujimori	February 19, 1993
8428 Okiko	November 3, 1997
8485 Satoru	March 29, 1989
8492 Kikuoka	January 21, 1990
8732 Champion	December 8, 1996
8877 Rentaro	January 19, 1993
8957 Koujounotsuki	March 22, 1998
9032 Tanakami	November 23, 1989
9062 Ohnishi	November 27, 1992
9063 Washi	December 17, 1992
9196 Sukagawa	November 27, 1992
9198 Sasagamine	January 25, 1993
9323 Hirohisasato	February 11, 1989
9409 Kanpuzan	January 25, 1995
9745 Shinkenwada	November 2, 1988
9751 Kadota	August 20, 1990
9756 Ezaki	February 12, 1991
9852 Gora	December 24, 1990
9870 Maehata	February 24, 1992
9964 Hideyonoguchi	February 13, 1992
10078 Stanthorpe	October 30, 1989
10091 Bandaisan	November 11, 1990
10094 Eijikato	February 20, 1991
10167 Yoshiwatiso	January 31, 1995
10300 Tanakadate	March 6, 1989
10321 Rampo	October 26, 1990
10547 Yosakoi	May 2, 1992
(10791) 1992 CS	February 8, 1992
10803 Caléyo	October 21, 1992
10829 Matsuobasho	October 22, 1993
11288 Okunohosomichi	December 10, 1990
(11294) 1992 CK	February 4, 1992
11296 Denzen	May 24, 1992
11304 Cowra	February 19, 1993
11321 Tosimatumoto	February 21, 1995
11361 Orbinskij	February 28, 1998
11516 Arthurpage	March 6, 1991
11878 Hanamiyama	April 18, 1990
(11925) 1992 YA1	December 23, 1992
11927 Mount Kent	January 16, 1993
12084 Unno	March 22, 1998
12277 Tajimasatonokai	November 17, 1990
(12335) 1992 WJ3	November 21, 1992
(12690) 1988 VG1	November 5, 1988
(12706) 1990 TE1	October 15, 1990
(12749) 1993 CB	February 2, 1993
(13015) 1987 XC	December 14, 1987
13529 Yokaboshi	September 1, 1991
13553 Masaakikoyama	May 2, 1992
13569 Oshu	March 4, 1993
13918 Tsukinada	August 24, 1984
13933 Charleville	November 2, 1988
13978 Hiwasa	May 4, 1992
13989 Murikabushi	January 16, 1993
14012 Amedee	December 6, 1993
14880 Moa	February 7, 1991
15238 Hisaohori	February 2, 1989
15252 Yoshiken	July 20, 1990
15723 Girraween	September 20, 1990
15739 Matsukuma	March 9, 1991
16503 Ayato	October 15, 1990
16602 Anabuki	March 17, 1993
(17461) 1990 UD1	October 20, 1990
17465 Inawashiroko	November 11, 1990
17508 Takumadan	May 3, 1992
17509 Ikumadan	May 4, 1992
18365 Shimomoto	November 17, 1990
(18400) 1992 WY3	November 25, 1992
(18609) 1998 BN48	January 30, 1998
(18644) 1998 EX14	March 2, 1998
19156 Heco	September 20, 1990
(19161) 1990 TQ1	October 15, 1990
19197 Akasaki	March 6, 1992
(19210) 1992 YE4	December 25, 1992
(20040) 1992 WT3	November 21, 1992
20102 Takasago	January 31, 1995
21014 Daishi	October 13, 1988
21016 Miyazawaseiroku	November 2, 1988
21022 Ike	February 2, 1989
21089 Mochizuki	February 8, 1992
21126 Katsuyoshi	January 19, 1993
(21166) 1993 XH	December 6, 1993
(21282) 1996 TD15	October 14, 1996
23468 Kannabe	September 20, 1990
(23478) 1991 BZ	January 21, 1991
23504 Haneda	March 7, 1992
23587 Abukumado	October 2, 1995
24889 Tamurahosinomura	December 11, 1996
(26092) 1987 SF	September 16, 1987
(26097) 1988 VJ1	November 6, 1988
(26123) 1992 OK	July 29, 1992
26127 Otakasakajyo	January 19, 1993
26151 Irinokaigan	October 2, 1994
(26837) 1991 RF1	September 7, 1991
27716 Nobuyuki	February 13, 1989
27739 Kimihiro	October 17, 1990
27740 Obatomoyuki	October 20, 1990
27790 Urashimataro	February 13, 1993
29157 Higashinihon	March 11, 1989
29186 Lake Tekapo	October 26, 1990
29199 Himeji	March 17, 1991
29249 Hiraizumi	September 26, 1992
29252 Konjikido	January 25, 1993
29337 Hakurojo	January 6, 1995
(30838) 1991 CM1	February 7, 1991
30879 Hiroshikanai	May 25, 1992
30888 Okitsumisaki	January 19, 1993
32858 Kitakamigawa	January 25, 1993
35076 Yataro	January 21, 1990
35093 Akicity	March 14, 1991
37729 Akiratakao	October 14, 1996
39558 Kishine	May 24, 1992
39566 Carllewis	September 26, 1992
(39712) 1996 TJ54	October 14, 1996
39809 Fukuchan	November 30, 1997
(42566) 1996 XQ25	December 3, 1996
(43792) 1990 VY1	November 11, 1990
43794 Yabetakemoto	December 19, 1990
(43803) 1991 RH2	September 7, 1991
(43857) 1993 VP2	November 15, 1993
46580 Ryouichiirie	April 2, 1992
(46592) 1992 YP	December 16, 1992
46595 Kita-Kyushu	December 29, 1992
46596 Tobata	January 16, 1993
48482 Oruki	February 5, 1992
48495 Ryugado	January 16, 1993
52285 Kakurinji	July 30, 1990
52455 Masamika	January 6, 1995
(58164) 1989 WV3	November 20, 1989
58184 Masayukiyamamoto	September 7, 1991
58185 Rokkosan	September 7, 1991
65716 Ohkinohama	January 25, 1993
65894 Echizenmisaki	January 30, 1998
79130 Bandanomori	October 26, 1990
79149 Kajigamori	October 27, 1992
79152 Abukumagawa	March 17, 1993
90713 Chajnantor	November 11, 1990
120462 Amanohashidate	October 26, 1990
237276 Nakama	December 2, 2008
(321821) 2010 RT46	September 3, 2010

Tsutomu Seki (関 勉 Seki Tsutomu, born November 3, 1930) is a Japanese astronomer, born in Kōchi, Japan.

He has discovered a number of comets, including the celebrated bright C/1965 S1 (Ikeya-Seki).

He has also discovered a large number of asteroids, including the Amor asteroid (13553) 1992 JE and the Trojan asteroid (5209) 1989 CW1.

Many of his discoveries are named after famous sites in Kōchi, such as Harimaya-bashi, Ryōma (after Sakamoto Ryōma), Katsurahama, and Kagami-gawa.

He is Director of the Geisei Observatory in Kōchi, and in charge of the Comet Section of the Oriental Astronomical Association.

External links

• Tsutomu Seki homepage