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Kōyō Kawanishi (川西 浩陽, Kawanishi Kōyō, born January 18, 1959) is a Japanese dentist, amateur astronomer and discoverer of 13 minor planets.

He lives in the city of Akō in the Hyōgo Prefecture, Japan, where his private Minami-Oda Observatory (374) is located. At the observatory, he observes comets and minor planets using his home-made 0.20-m reflector telescope together with his wife Kumi and daughter Saki. Familiar with electronics and mechanics, he has also developed his own CCD instrumentation.

The asteroid 5591 Koyo, discovered by Japanese astronomer Takeshi Urata, was named in his honour.

References

1. ^ "Minor Planet Discoverers (by number)". Minor Planet Center. 23 May 2016. Retrieved 21 June 2016.
2. ^ Schmadel, Lutz D. (2003). "(5591) Koyo". Dictionary of Minor Planet Names – (5591) Koyo. Springer Berlin Heidelberg. p. 475. doi:10.1007/978-3-540-29925-7_5311. ISBN 978-3-540-29925-7.
3. Schmadel, Lutz D. (2003). "(4797) Ako". Dictionary of Minor Planet Names – (4797) Ako. Springer Berlin Heidelberg. p. 414. doi:10.1007/978-3-540-29925-7_4700. ISBN 978-3-540-29925-7.

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