| Shin Hirayama|
| Kiyotsugu Hirayama, Adam Massinger, Auguste Charlois|
498 Tokio, 727 Nipponia
Shin Hirayama Wikipedia
Shin Hirayama (平山 信, Hirayama Shin, 1868–1945) was the first Japanese astronomer to discover an asteroid. In 1900 he discovered 498 Tokio and 727 Nipponia.
The crater Hirayama on the Moon is jointly named after him and Kiyotsugu Hirayama.