NGC 6811

Number of stars per data source

	Reference    4 :  299 stars
	Reference  485 :    2 stars

4: Sanders W.L.; (1971) Astron. Astrophys. 15, 368; Membership of the open cluster NGC 6811; 1971A&A....15..368S
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