恒こう星せい図ずこうせいずMeanings1nounstar map; star chartastronomyAstronomy term for a map or chart showing the positions of stars and constellations. Compare 星図, which is a more general term for star charts.See also: 星図彼かれは天てん体たい観かん測そくのために恒こう星せい図ずを広ひろげた。He spread out a star map for astronomical observation.
