Usuda Star Dome
Saku, Japan
Usuda Star Dome is a public observatory located in Saku, Nagano, Japan. Saku is one of the best places for astronomical observation in Japan because of high altitude, high rate of sunny days, and limpid air. Visitors are allowed to watch stars through the large telescope from 10 a.m. to 10 p.m.
Observatory data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).