Deep UBVRI photometry in IC 348 ? ? ?

Deep UBVRI-CCD Johnson photometry for 123 stars in the densest region of IC348 open cluster were obtained during three observational runscolour and colour-magnitude diagrams allowed us to classify 114 stars as members of the cluster and to connrm a large presence of pre-main sequence stars. Individual reddening values were computed for the brightest members. The structure and sub-clustering were discussed and a new sub-cluster was identiied. On the assumption that all the stars in the cluster were born at the same time, an age of 3-7 10 6 yr was derived from PMS evolutionary models for low mass stars.