CMDs for 16 OCs in Bragaglia & Tosi 2006CMDs for 4 additional OCs

CMDs for the firs 16 OCs (as in Bragaglia & Tosi (2006) ) in decreasing age order, from about 6 Gyr to about 0.1 Gyr, and for four additional clusters published later, among them the very old Be 17, with an age of about 8.5 Gyr (see here for references and detailed informations on all OCs)