NGC 2244 and the Rosette Nebula

NGC 2244 is an open cluster found in the centre of the Rosette Nebula. Comparatively young, the stars were formed out of the nebula only 4 million years ago. The cluster shines at a bright visual magnitude of 4.8, which illuminates the entire nebula.

The brightest star of the cluster is 12 Monocerotis, at 5.9 visual magnitude. (Note: CDSA mislabels the star 13 Mon.)

The Rosette Nebula is still forming stars as the high stellar winds compress the interstellar clouds. The nebula is best seen in small telescopes with low magnification.

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1999-2014 by Richard Dibon-Smith.