Description
The Rosette Nebula (NGC 2237, Caldwell 49) is the large hydrogen, sulfur and oxygen gas cloud in the constellation of Monoceros. The open star cluster NGC 2244 (Caldwell 50) consists of stars being formed from the nebula. The nebula is 5,200 light years away from Earth. Amateur image, total exposure time: 15h45m, HST palette image.