Messier 78
Reflection nebula in the constellation of Orion
Messier 78
Messier 78 (also known as M78 or NGC 2068) is a reflection nebula in the constellation Orion. It is the brightest diffuse reflection nebula in a group that includes NGC 2064, NGC 2067, and NGC 2071, all part of the Orion B molecular cloud complex. Located approximately 1,350 light-years from Earth, M78 is visible in small telescopes as a hazy patch illuminated by two B-type stars, HD 38563 A and HD 38563 B, of 10th and 11th magnitude. It is a popular target for amateur astronomers, who have given it the common name Casper the Friendly Ghost Nebula.
Read on Wikipedia · Image ESO/Igor Chekalin, CC BY 4.0
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