The Rosette Nebula (NGC 2237)

The Rosette Nebula is the most notable deep sky object in Monoceros.

The nebula is better seen in binoculars than with small to medium telescopes, which dilute the fine wispy filaments so that they become very difficult to see.

On the other hand, with 10x50 binoculars, an exceptionally dark night, and a bit of observing experience, it's possible to pick out the nebula but not the central core. (And you won't approach the detail of long-exposure photographs.)

The nebula is in the same field as epsilon Monocerotis, and 13 Mon: binoculars.

The nebula is catalogued under four different NGC (New General Catalogue) numbers: 2237, 2238, 2239, and 2246, although convention now puts the nebula under the one reference number of 2237.

An associated star cluster, born out of the nebula many millions of years ago, is NGC 2244.

All files associated with The Constellations Web Page are
1999-2014 by Richard Dibon-Smith.