Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2239  ·  NGC 2244  ·  NGC 2252  ·  Rosette nebula  ·  The star 12Mon
Rosette Nebula Caldwell 49, astronomiser
Rosette Nebula Caldwell 49
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Rosette Nebula Caldwell 49

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Description

The cluster and nebula lie at a distance of some 5,000 light-years from Earth[3]) and measure roughly 130 light years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.

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Rosette Nebula Caldwell 49, astronomiser