Berkeley 15

Number of stars per data source

	Reference  432 :  110 stars
	Reference  433 : 1361 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