Berkeley 15

Number of stars per data source

	Reference  432 :  110 stars
	Reference  433 : 1408 stars
	Reference  536 :  467 stars

432: Sujatha S., Babu G.S.D., Ananthamurthy S.; (2004) Bull. Astr. Soc. India 32, 295; UBVRI CCD photometric studies of open clusters Berkeley 15, Czernik 18 and NGC 2401; 2004BASI...32..295S
433: Lata S., V. Mohan, R. Sagar; (2004) Bull. Astr. Soc. India 32, 371; CCD photometry of the galactic star clusters Be 15, Be 71 and King 1; 2004BASI...32..371L
536: Tapia M.T., Schuster W.J., Michel R., Chavarria-K. C., Dias W.S., Vazquez R., Moitinho A.; (2010) Mon. Not. R. Astron. Soc. 401, 621; UBV(RI)c photometry of the open clusters Be 15, Be 80 and NGC 2192; 2010MNRAS.401..621T