NGC 7209

Number of stars per data source

	Reference   41 :   86 stars
	Reference   50 :    3 stars

41: Mavers F.W.; (1940) Astr. Abh. Hamb. Sternw. Bergedorf V no 4; Untersuchungen der offenen Sternhaufen NGC 7092 (M39), NGC 7209 und NGC 7243
50: Cannon A.J., Pickering E.C.; (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100; Henry Draper catalogue and extension