Image Credit & Copyright: Don
Goldman
Explanation:
In the heart of the Rosette Nebula lies a bright open cluster of stars
that lights up the nebula. The stars of NGC 2244 formed from the surrounding
gas only a few million years ago. The above image taken in January using
multiple exposures and very specific colors of Sulfur (shaded red), Hydrogen
(green), and Oxygen (blue), captures the central region in tremendous detail. A
hot wind of particles streams away from the cluster stars and contributes to an
already complex menagerie of gas and dust filaments while slowly evacuating the
cluster center. The Rosette Nebula's center measures about 50 light-years
across, lies about 4,500 light-years away, and is visible with binoculars
towards the constellation of the Unicorn (Monoceros).
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