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

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]

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. 1 2 "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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