Sujatha, S; Babu, G. S. D; Ananthamurthy, S
(Astronomical Society of India, 2004-12)
CCD photometric observations of three open clusters Berkeley 15 (=OCl 414), Czernik 18 (=OCl 426) and NGC 2401 (=OCl 588), obtained for the first time in UBVRI filters down to V=20 mag, are presented here. They are located ...