NGC 457

Number of stars per data source

	Reference  450 :  131 stars
	Reference  485 :    5 stars

450: Zhao J.L., Tian K.P., Jing J.-Y. Yin M.G.; (1984) Special Issue (Shangai); Tables of membership of 42 open clusters
485: Baumgardt H., Dettbarn C., Wielen R.; (2000) Astron. Astrophys. Suppl. 146, 251; Absolute proper motions of open clusters. I. Observational data; 2000A&AS..146..251B