NGC 2237 Rosette Nebula

The Rosette Nebula (also known as Caldwell 49) is an H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula’s matter.

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The nebula has been noted to be having a shape reminiscent of a human skull, and is sometimes referred to as the “Skull Nebula.” It is not to be confused with NGC 246, which is also nicknamed the “Skull Nebula.”

Description
The complex has the following New General Catalogue (NGC) designations:

NGC 2237 – Part of the nebulous region (Also used to denote whole nebula)
NGC 2238 – Part of the nebulous region
NGC 2239 – Part of the nebulous region (Discovered by John Herschel)
NGC 2244 – The open cluster within the nebula (Discovered by John Flamsteed in 1690)[citation needed] NGC 2246 – Part of the nebulous region

Personal reflections

Keywords: NGC 2237, Rosette Nebula, NGC 2238, NGC 2239, NGC 2244, NGC 2246, 110 Finest NGCs, Monoceros