Abstract
We present an extensive CCD UBVRI (Cousins system) photometric survey in the region of the open cluster Collinder 272. Our data analysis conrms that the cluster is situated in the outer border of Becker's inner arm -II, at a distance d = 2300 pc and probably re- lated to the neighbor cluster Hogg 16. There is no highly evolved stars in the cluster upper sequence and our age es- timate based upon isochrones from models computed with mass loss and overshooting, and other methods, indicates a mean age of 13 Myr. A statistical method based on the removal of eld stars was used to determine the luminosity function and the initial mass function of the cluster. The cluster initial mass function is characterized by a slope x =1 :8.
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