NGC 6604

Number of stars per data source

	Reference  114 :    1 star
	Reference  118 :    1 star
	Reference  122 :    1 star
	Reference  511 :    1 star

114: Morrison N.D.; (1975) Astrophys. J. 200,113; Photometry of O-type stars,interpreted with reference to model atmospheres; 1975ApJ...200..113M
118: Moffat A.F.J., Vogt N.; (1975) Astron. Astrophys. Suppl. 20, 155; Southern open stars clusters VI. UBV Hbeta photometry of 18 clusters from Centaurus to Sagittarius; 1975A&AS...20..155M
122: Crawford D.L.; (1975) Publ. Astron. Soc. Pacific 87, 481; Four-color and Hbeta photometry of O-type stars; 1975PASP...87..481C
511: Kilkenny D.; (1993) SAAO Circ. 15, 53; A study of reddened luminous stars in the southern Milky Way II. Hbeta photometry, reddening and distances; 1993SAAOC..15...53K