The Rosette Nebula is a large, circular region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy.
It is believed that stellar winds from a group of stars are exerting pressure on interstellar clouds to cause compression, followed by star formation in the nebula. This star formation is currently still ongoing.
A survey of the nebula with the Chandra X-ray Observatory in 2001 has revealed the presence of very hot, young stars at the core of the Rosette Nebula. These stars have heated the surrounding gas to a temperature in the order of 6 million kelvins causing them to emit copious amounts of X-rays.
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