NGC 4103

Number of stars per data source

	Reference  292 :   20 stars
	Reference  434 :    1 star

292: Stetson P.B.; (1981) Astron. J. 86, 1500; Four-color and Hbeta photometry for four southern open clusters; 1981AJ.....86.1500S
434: Westerlund B.E., Garnier R.; (1989) Astron. Astrophys. Suppl. 78, 203; UBV Beta photometry of luminous early-type stars and emission-line stars in the southern Coalsack region; 1989A&AS...78..203W