is a Japanese

astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...

and a prolific discoverer of

asteroid An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. ...

s. Between 1991 and 1998, he discovered 52

minor planet According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor ...

s in collaboration with fellow observer Shohei Suzuki at

Mount Nyukasa Station The list of asteroid-discovering observatories contains a section for each observatory which has discovered one or more asteroids, along with a list of those asteroids. For each numbered asteroid, the Minor Planet Center lists one or more discov ...

. Both astronomers are graduates of

Waseda University , abbreviated as , is a private university, private research university in Shinjuku, Tokyo. Founded in 1882 as the ''Tōkyō Senmon Gakkō'' by Ōkuma Shigenobu, the school was formally renamed Waseda University in 1902. The university has numerou ...

, after which they named the asteroid

9350 Waseda Year 935 ( CMXXXV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe * Spring – Arnulf I ("the Bad") of Bavaria invades Italy, crossing through the Uppe ...

in 1991. Hirasawa is also a teacher.

List of discovered minor planets

List of discovered minor planets

References

See also