Trifid Nebula In Sagittarius
by Science Source
Title
Trifid Nebula In Sagittarius
Artist
Science Source
Medium
Photograph - Photograph
Description
Trifid Nebula (M20) is a cloud of gas and dust lying some 3000 light years away in the constellation of Sagittarius. The gas is mostly hydrogen, which glows red because it is excited by ultraviolet radiation from hot young stars lying within it.
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March 7th, 2013
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