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Tsutomu Seki

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Minor planets discovered: 225 [1]
see § List of discovered minor planets

Tsutomu Seki (関 勉, Seki Tsutomu, born November 3, 1930) is a Japanese amateur astronomer and discoverer of minor planets and comets, born in Kōchi, Japan.

Career

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Tsutomu Seki is the Director of the Geisei Observatory in Kōchi, and in charge of the Comet Section of the Oriental Astronomical Association. Between 1961 and 1970, he had visually discovered six comets, including C/1965 S1 (Ikeya-Seki), the well known great comet of 1965.[2]

He has also discovered a large number of asteroids such as 13553 Masaakikoyama and 5209 Oloosson, a near-Earth Amor asteroid and a Jupiter trojan, respectively. Many of his discoveries are named after famous sites in Kōchi, such as Harimaya-bashi, Ryōma (after Sakamoto Ryōma), Katsurahama beach, and Kagami-gawa.

Awards and honors

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Asteroid 3426 Seki, discovered by Karl Reinmuth at the Heidelberg Observatory in 1932, was named in his honor.[2] The official naming citation was published by the Minor Planet Center on 16 December 1986 (M.P.C. 11443).[3]

List of discovered minor planets

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

See also

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References

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  1. ^ "Minor Planet Discoverers (by number)". Minor Planet Center. 11 July 2018. Retrieved 18 July 2018.
  2. ^ a b Schmadel, Lutz D. (2007). "(3426) Seki". Dictionary of Minor Planet Names – (3426) Seki. Springer Berlin Heidelberg. p. 286. doi:10.1007/978-3-540-29925-7_3426. ISBN 978-3-540-00238-3.
  3. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 18 July 2018.
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