NGC 6913

Number of stars per data source

	Reference   32 :   58 stars
	Reference   50 :    9 stars

32: Becker W., Stock J.; (1948) Astron. Nach. 278, 115; Kolorimetrische Untersuchung an offenen Sternhaufen in den Standard-Spektralbereichen der Integralphotometrie. Die Sterngruppe NGC 6913 = M29; 1948AN....278..115B
50: Cannon A.J., Pickering E.C.; (1918-1924), Ann. Obs. Harvard Coll. Obs. 91 to 99 and 100; Henry Draper catalogue and extension