RCW38

This giant star formation region at the boundary of the Vela OB1 association is a blister compact HII region lying just inside the edge of a giant molecular cloud. It is ionised by an enormous star cluster, [BDB2003] G267.92-01.06, that is less than 1 million years old and contains about 2000 stars (about 31 of these candidate O or B class stars). The hottest of these is the O5.5V class [FP74] RCW 38 IRS 2.