Hiroki Kosai

Hiroki Kosai (香西 洋樹, Kōsai Hiroki, born 8 February 1933) is a Japanese astronomer with the Kiso Observatory. He is best known for helping to popularize astronomy in Japan and for his observations of comets and asteroids, most notably with his co-discovery the comet 1976 XVI.[2] He is credited by the Minor Planet Center (MPC) with the discovery of nearly 100 asteroids.[1]

Hiroki Kosai
香西 洋樹
Born (1933-08-02) August 2, 1933
NationalityJapanese
Known forHelping to popularize astronomy in Japan
Scientific career
FieldsAstronomy
InstitutionsTokyo Astronomical Observatory
Minor planets discovered: 93 [1]
see § List of discovered minor planets

Awards and honors

Asteroid 3370 Kohsai, discovered by Karl Reinmuth at Heidelberg Observatory in 1930, was is named in his honor.[3] The official naming citation was published by the MPC on 14 April 1987 (M.P.C. 11750).[4]

List of discovered minor planets

Hiroki Kosai discovered several asteroids, all in collaboration with A Kiichirō Furukawa and B Goro Sasaki:

2271 Kiso22 October 1976list [A]
2330 Ontake18 February 1977list [A]
2470 Agematsu22 October 1976list [A]
2924 Mitake-mura18 February 1977list [A]
2960 Ohtaki18 February 1977list [A]
3111 Misuzu19 February 1977list [A]
3249 Musashino18 February 1977list [A]
3291 Dunlap14 November 1982list [A]
3319 Kibi12 March 1977list [A]
3320 Namba14 November 1982list [A]
3391 Sinon18 February 1977list [A]
3392 Setouchi17 December 1979list [B]
3607 Naniwa18 February 1977list [A]
3878 Jyoumon14 November 1982list [A]
4072 Yayoi30 October 1981list [A]
4077 Asuka13 December 1982list [A]
4186 Tamashima18 February 1977list [A]
4272 Entsuji12 March 1977list [A]
4526 Konko22 May 1982list [A]
4812 Hakuhou18 February 1977list [A]
4855 Tenpyou14 November 1982list [A]
4890 Shikanosima14 November 1982list [A]
4929 Yamatai13 December 1982list [A]
4963 Kanroku18 February 1977list [A]
5017 Tenchi18 February 1977list [A]
5018 Tenmu19 February 1977list [A]
5082 Nihonsyoki18 February 1977list [A]
5454 Kojiki12 March 1977list [A]
5466 Makibi30 November 1986list [A]
5541 Seimei22 October 1976list [A]
6031 Ryokan26 January 1982list [A]
6218 Mizushima12 March 1977list [A]
6818 Sessyu11 March 1983list [A]
6846 Kansazan22 October 1976list [A]
7104 Manyousyu18 February 1977list [A]
7105 Yousyozan18 February 1977list [A]
7562 Kagiroino-Oka30 November 1986list [A]
7627 Wakenokiyomaro18 February 1977list [A]
7634 Shizutani-Kou14 November 1982list [A]
7991 Kaguyahime30 October 1981list [A]
8133 Takanochoei18 February 1977list [A]
8144 Hiragagennai14 November 1982list [A]
9147 Kourakuen18 February 1977list [A]
9153 Chikurinji30 October 1981list [A]
9293 Kamogata13 December 1982list [A]
9719 Yakage18 February 1977list [A]
10006 Sessai22 October 1976list [A]
10008 Raisanyo18 February 1977list [A]
10009 Hirosetanso12 March 1977list [A]
10453 Banzan18 February 1977list [A]
11254 Konkohekisui18 February 1977list [A]
11255 Fujiiekio18 February 1977list [A]
11442 Seijin-Sanso22 October 1976list [A]
11827 Wasyuzan14 November 1982list [A]
12186 Mitukurigen12 March 1977list [A]
12221 Ogatakoan14 November 1982list [A]
12682 Kawada14 November 1982list [A]
14313 Dodaira22 October 1976list [A]
14314 Tokigawa18 February 1977list [A]
14315 Ogawamachi12 March 1977list [A]
14316 Higashichichibu12 March 1977list [A]
14338 Shibakoukan14 November 1982list [A]
14795 Syoyou12 March 1977list [A]
14820 Aizuyaichi14 November 1982list [A]
14821 Motaeno14 November 1982list [A]
15202 Yamada-Houkoku12 March 1977list [A]
15671 Suzannedébarbat12 March 1977list [A]
15672 Sato-Norio12 March 1977list [A]
16357 Risanpei22 October 1976list [A]
18289 Yokoyamakoichi22 October 1976list [A]
18290 Sumiyoshi18 February 1977list [A]
18291 Wani18 February 1977list [A]
18322 Korokan14 November 1982list [A]
19083 Mizuki18 February 1977list [A]
(19917) 1977 EE812 March 1977list [A]
19953 Takeo14 November 1982list [A]
19954 Shigeyoshi14 November 1982list [A]
20962 Michizane12 March 1977list [A]
22277 Hirado14 November 1982list [A]
24640 Omiwa13 December 1982list [A]
26794 Yukioniimi18 February 1977list [A]
(26806) 1982 KX122 May 1982list [A]
(26808) 1982 VB414 November 1982list [A]
34995 Dainihonshi18 February 1977list [A]
34996 Mitokoumon18 February 1977list [A]
(37529) 1977 EL812 March 1977list [A]
(43753) 1982 VN314 November 1982list [A]
(48408) 1982 VN214 November 1982list [A]
52260 Ureshino22 May 1982list [A]
52261 Izumishikibu14 November 1982list [A]
(65635) 1977 EA812 March 1977list [A]
(73639) 1977 EL712 March 1977list [A]
(164616) 1986 WV830 November 1986list [A]
Co-discovery made with:
A K. Furukawa
B G. Sasaki

See also

References
  1. "Minor Planet Discoverers (by number)". Minor Planet Center. 11 July 2018. Retrieved 17 July 2018.
  2. "3370 Kohsai (1934 CU)". Minor Planet Center. Retrieved 18 July 2018.
  3. Schmadel, Lutz D. (2007). "(3370) Kohsai". Dictionary of Minor Planet Names – (3370) Kohsai. Springer Berlin Heidelberg. p. 281. doi:10.1007/978-3-540-29925-7_3370. ISBN 978-3-540-00238-3.
  4. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 18 July 2018.
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