is a Japanese amateur
astronomer
An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...
and a prolific discoverer of hundreds of
asteroid
An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital with Jupiter (Trojan asteroids). As ...
s since 1993. An
orthopaedist
Orthopedic surgery or orthopedics ( alternative spelling orthopaedics) is the branch of surgery concerned with conditions involving the musculoskeletal system. Orthopedic surgeons use both surgical and nonsurgical means to treat musculoskeletal ...
by profession, he is also known as an
astrophotographer.
The central
main-belt
The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars. It contains a great many solid, irregularly shaped bodies called asteroids ...
asteroid
7300 Yoshisada, discovered by astronomer
Takeshi Urata
was a Japanese astronomer. He was a prolific discoverer of asteroids, observing at Nihondaira Observatory.
In 1978 he became the first amateur to discover a minor planet (2090 Mizuho
2090 Mizuho, provisional designation , is a stony astero ...
in 1992, was named in his honor.
The official was published on 18 August 1997 ().
List of discovered minor planets
See also
*
References
{{DEFAULTSORT:Shimizu, Yoshisada
1943 births
Living people
20th-century Japanese astronomers
Discoverers of asteroids