Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2244  ·  NGC 2252  ·  Rosette nebula  ·  The star 12Mon
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NGC 2244 • Rosette Nebula in SHO, Douglas J Struble
NGC 2244 • Rosette Nebula in SHO
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NGC 2244 • Rosette Nebula in SHO

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NGC 2244 • Rosette Nebula in SHO, Douglas J Struble
NGC 2244 • Rosette Nebula in SHO
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NGC 2244 • Rosette Nebula in SHO

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Description

NGC 2244 (also known as Caldwell 50) is an open cluster in the Rosette Nebula, which is located in the constellation Monoceros. This cluster has several O-type stars, super hot stars that generate large amounts of radiation and stellar wind.

The age of this cluster has been estimated to be less than 5 million years. The brightest star in the cluster is 12 Monocerotis, a foreground K-class giant. The two brightest members of the cluster are HD 46223 of spectral class O4V, 400,000 times brighter than the Sun, and approximately 50 times more massive, and HD 46150, whose spectral type is O5V, has a luminosity 450,000 time larger than that of our star, and is up to 60 times more massive, but it may actually be a double star.

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NGC 2244 • Rosette Nebula in SHO, Douglas J Struble