NGC 4609

Number of stars per data source

	Reference  482 :   14 stars
	Reference  515 :    1 star
	Reference  687 :   52 stars
	Reference  712 :    2 stars

482: Loden L.O.; (1979) Astron. Astrophys. Suppl. 38, 355; Continued studies of loose clustering in the southern Milky Way; 1979A&AS...38..355L
515: Claria J.J., Lapasset E., Minniti D.; (1989) Astron. Astrophys. Suppl. 78, 363; Photometric metal abundances of high-luminosity red stars in young and intermediate-age open clusters; 1989A&AS...78..363C
687: Feinstein F., Marraco H.G.; (1971) Publ. Astron. Soc. Pacific 83, 218; The open cluster NGC 4609 behind the Coalsack; 1971PASP...83..218F
712: Muzzio J.C., Feinstein A., Orsatti A.M.; (1976) Publ. Astron. Soc. Pacific 88, 526; UBV and HB photometry of faint early-type stars in Crux and Centaurus; 1976PASP...88..526M