Trumpler 37

Number of stars per data source

	Reference   44 :    1 star
	Reference  107 :    1 star
	Reference  114 :    1 star
	Reference  119 :    2 stars
	Reference  122 :    1 star

44: Crawford D.L., Barnes J.V., Golson J.C.; (1971) Astron. J. 76, 1058; Four-color and Hbeta photometry for bright B-type stars in the northern hemisphere; 1971AJ.....76.1058C
107: Feinstein A.; (1974) Mon. Not. R. Astr. Soc. 169, 171; Photoelectric measures of the Hydrogen lines in early-type stars; 1974MNRAS.169..171F
114: Morrison N.D.; (1975) Astrophys. J. 200,113; Photometry of O-type stars,interpreted with reference to model atmospheres; 1975ApJ...200..113M
119: Deutschman W.A., Davis R.J., Schild R.E.; (1976) Astrophys. J. Suppl. 30, 97; The galactic distribution of interstellar absorption as determined from the Celescope catalog of ultraviolet stellar observations and a new catalog of UBV, Hbeta photoelectric observations; 1976ApJS...30...97D
122: Crawford D.L.; (1975) Publ. Astron. Soc. Pacific 87, 481; Four-color and Hbeta photometry of O-type stars; 1975PASP...87..481C