Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  15 S Mon  ·  Christmas Tree Cluster  ·  LBN 911  ·  LBN 912  ·  LDN 1613  ·  NGC 2264  ·  Sh2-273  ·  The star 15Mon
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NGC2264, Valerio Avitabile
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NGC2264

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NGC2264, Valerio Avitabile
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NGC2264

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Description

The Cone Nebula located in the winter constellation of the UNICORN, is made up of a large cloud of hydrogen ionized by the ultraviolet radiation emitted by the stars that make up the star cluster NGC2264, called the "Christmas Tree". vertex of the "Cone" nebula. This nebula is a part of a vast dark nebula, consisting of dust and molecular hydrogen, which stands out on the underlying emission nebula and recognizable by its typical reddish color. It was first observed by the English astronomer William Herschel on December 26, 1785 and is about 2700 light years from Earth.

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NGC2264, Valerio Avitabile