Measuring 50 light years in diameter, the large, round Rosette Nebula is found on the edge of a molecular cloud in the constellation of Monoceros the Unicorn. At the core of the nebula the very hot young stars have heated the surrounding gaseous shell to a temperature in the order of 6 million kelvins, resulting in the emission of copious amounts of X-Rays.
Image Credit & Copyright: Juan Ignacio Jimenez
Explanation by: Royal Observatory Greenwich
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