Messier 108, also known as M108 or NGC 3556, is a barred spiral galaxy in the constellation Ursa Major, discovered by Pierre Mechain in 1781 but not formally added to Charles Messier's catalogue until 1953, when the American astronomer Owen Gingerich included it among Mechain's observations. It lies roughly 46 million light-years from Earth and is seen nearly edge-on from Earth, giving it an elongated, mottled appearance without a clearly defined central bulge.
Facts
Classification
Constellation Discovery Year In the Other Atlases
In Constellation
Also in Divinity Atlas: the constellation this subject lies in.
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia Foundation
2. Wikidata: Messier 108
Messier 108 (Wikipedia)
Messier 108, Wikipedia - lead section, catalogue classification
Messier 108 (also known as NGC 3556, nicknamed the Surfboard Galaxy) is a barred spiral galaxy about 46 million light-years away from Earth in the northern constellation Ursa Major.
Messier 108, Wikipedia - lead section, constellation
Messier 108 (also known as NGC 3556, nicknamed the Surfboard Galaxy) is a barred spiral galaxy about 46 million light-years away from Earth in the northern constellation Ursa Major.
- In Group: Spiral Galaxies, infobox 'type' field: SB(s)cd (NED classification, de Vaucouleurs system) filed under Spiral Galaxies
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