Masayuki Yanai
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is a Japanese
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 ...
. He is a prolific co-
discoverer of minor planets This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth and main-belt asteroids, Jupiter trojans and distant objects). , the discovery of 612,011 num ...
. One of his co-discoveries is the dark, inner
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 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 ...
3915 Fukushima. He retired from docent for astronomy at
Sapporo is a Cities designated by government ordinance of Japan, designated city in Hokkaido, Japan. Located in the southwest of Hokkaido, it lies within the alluvial fan of the Toyohira River, a tributary of the Ishikari River. Sapporo is the capital ...
Science Center. The asteroid 4260 Yanai, discovered by Japanese astronomers
Seiji Ueda is a Japanese astronomer. He is a prolific discoverer of minor planets. Between 1987 and 2000, Ueda (in collaboration with Hiroshi Kaneda) discovered 705 asteroids. He holds an MD and Ph.D. from Stanford University and is on the staff at the G ...
and
Hiroshi Kaneda is a Japanese astronomer and discoverer of minor planets from Sapporo, in the northernmost prefecture of Japan. Kaneda ranks among the world's most prolific individual discoverers of minor planets. He is credited by the Minor Planet Center with ...
at Kushiro Observatory () in 1989, was named in his honor on 8 July 1990 ().


List of discovered minor planets


See also

* List of minor planets: 17001–18000 *
National Astronomical Observatory of Japan The (NAOJ) is an astronomy, astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii and Chile. It was established in 1988 as an amalgamation of three existing research organizations - the To ...


References


External links

* * 1959 births 21st-century Japanese astronomers Discoverers of asteroids * 20th-century Japanese astronomers Living people {{japan-astronomer-stub