Yoshisada Shimizu

Yoshisada Shimizu (清水 義定) is a Japanese amateur astronomer and a prolific discoverer of hundreds of asteroids since 1993. An orthopaedist by profession, he is also known as an astrophotographer.

The central main-belt asteroid 7300 Yoshisada, discovered by astronomer Takeshi Urata in 1992, was named in his honor. The official was published on 18 August 1997 (M.P.C.).