Masahiro Koishikawa
Born1952 (1952)
DiedAugust 26, 2020(2020-08-26) (aged 67–68)
Minor planets discovered: 19[1]
see § List of discovered minor planets

Masahiro Koishikawa (小石川 正弘, Koishikawa Masahiro, 1952 – 26 August 2020) was a Japanese astronomer. He studied both major and minor planets, and discovered multiple asteroids.[2]

Koishikawa was a staff member of the Sendai Astronomical Observatory frin 1972. His research was based out of the Sendai's Ayashi (391) station. The main-belt asteroid 6097 Koishikawa, discovered by Kin Endate and Kazuro Watanabe at Kitami in 1991, was named in his honor.[2] He died on 26 August 2020 from lung cancer.[3]

List of discovered minor planets

3994 Ayashi2 December 1988list
4292 Aoba4 November 1989list
4407 Taihaku13 October 1988list
4539 Miyagino8 November 1988list
4871 Riverside24 November 1989list
5128 Wakabayashi30 March 1989list
5751 Zao5 January 1992list
6089 Izumi5 January 1989list
6190 Rennes8 October 1989list
6349 Acapulco8 February 1995list
6859 Datemasamune13 February 1991list
7485 Changchun4 December 1994list
7816 Hanoi18 December 1987list
8084 Dallas6 February 1989list
10500 Nishi-koen3 April 1987list
11514 Tsunenaga13 February 1991list
12252 Gwangju8 November 1988list
14032 Mego4 December 1994list
30963 Mount Banzan29 November 1994list

See also

References

  1. "Minor Planet Discoverers (by number)". Minor Planet Center. 4 September 2016. Retrieved 11 March 2017.
  2. 1 2 Schmadel, Lutz D. (2007). "(6097) Koishikawa". Dictionary of Minor Planet Names – (6097) Koishikawa. Springer Berlin Heidelberg. p. 509. doi:10.1007/978-3-540-29925-7_5644. ISBN 978-3-540-00238-3.
  3. 小石川正弘さん死去 仙台市天文台元職員 星空の魅力伝える Archived 2020-08-28 at the Wayback Machine (in Japanese)
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