Masahiro Koishikawa Explained

Minor planets discovered: 19 
see

was a Japanese astronomer. He studied both major and minor planets, and discovered multiple asteroids.

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. He died on 26 August 2020 from lung cancer.[1]

List of discovered minor planets

important; height: 270px;
2 December 1988
4 November 1989
13 October 1988
8 November 1988
24 November 1989
30 March 1989
5 January 1992
5 January 1989
8 October 1989
8 February 1995
important; height: 244px;
13 February 1991
4 December 1994
18 December 1987
6 February 1989
3 April 1987
13 February 1991
8 November 1988
4 December 1994
29 November 1994

Notes and References

  1. https://www.kahoku.co.jp/tohokunews/202008/20200828_13016.html 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