Hiroki Kosai, Date of Birth, Place of Birth

Hiroki Kosai

Japanese astronomer

Date of Birth: 08-Feb-1933

Place of Birth: Kurashiki, Okayama Prefecture, Japan

Profession: astronomer

Nationality: Japan

Zodiac Sign: Aquarius

Hiroki Kosai (?? ??, Kosai 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.