There are a number of objects in the Solar System that have been named after Japanese people or places. Many of these are craters on the terrestrial planets.
Asada (crater) Hatanaka (crater) Hirayama (crater) Murakami (crater) Nagaoka (crater) Naonobu (crater) Yamamoto (crater) Nishina (crater) Kimura (crater) Onizuka (crater)
External links http://www.rediscovery.co.jp/?p=2642