ASTRONOMER

Hiroki Kosai

1933 - Today

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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. He is credited by the Minor Planet Center (MPC) with the discovery of nearly 100 asteroids. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Hiroki Kosai is the 470th most popular astronomer (up from 481st in 2019), the 1,296th most popular biography from Japan (up from 1,363rd in 2019) and the 6th most popular Japanese Astronomer.

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Among ASTRONOMERS

Among astronomers, Hiroki Kosai ranks 470 out of 644. Before him are Joel Stebbins, Milorad B. Protić, Bohdan Paczyński, Audouin Dollfus, William Wilson Morgan, and Hugo Gyldén. After him are Carolyn Porco, Elia Millosevich, Minoru Honda, Pierre Puiseux, Edward Pigott, and Lyudmila Karachkina.

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Contemporaries

Among people born in 1933, Hiroki Kosai ranks 358. Before him are Maurinho, Miriam Stevenson, Nate Brooks, Reiner Kunze, Mark Forest, and Abdul Rahman Munif. After him are Mike Larrabee, Gino Pivatelli, Knut Johannesen, Wayne Rogers, Gabriel Aresti, and May Britt.

Others Born in 1933

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In Japan

Among people born in Japan, Hiroki Kosai ranks 1,296 out of 6,245. Before him are Prince Fushimi Hiroyasu (1875), Sion Sono (1961), Kimiko Shiratori (1968), Haruko Sugimura (1909), Masahiro Akimoto (1979), and Momoe Yamaguchi (1959). After him are Eijun Kiyokumo (1950), Takayuki Kubota (1934), Kappei Yamaguchi (1965), Takako Doi (1928), Masafumi Terada (1994), and Minoru Honda (1913).

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Among ASTRONOMERS In Japan

Among astronomers born in Japan, Hiroki Kosai ranks 6. Before him are Takeshi Urata (1947), Tsutomu Seki (1930), Chushiro Hayashi (1920), Kiyotsugu Hirayama (1874), and Hisashi Kimura (1870). After him are Minoru Honda (1913), Kaoru Ikeya (1943), Okuro Oikawa (1896), Hiroshi Kaneda (1953), Yuji Hyakutake (1950), and Kiichirō Furukawa (1929).

Japanese born Astronomers

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