Messier 109, also known as M109 or NGC 3992, 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 Owen Gingerich included it among Mechain's observations. It lies roughly 55 to 60 million light-years from Earth, is the brightest member of the M109 Group, and shows a well-developed central bar linking its spiral arms.
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 109
Messier 109 (Wikipedia)
Messier 109, Wikipedia - lead section, catalogue classification
Messier 109 (also known as NGC 3992 or the Vacuum Cleaner Galaxy) is a barred spiral galaxy approximately 67.2 ± 23 million light-years away in the northern constellation Ursa Major.
Messier 109, Wikipedia - lead section, constellation
Messier 109 (also known as NGC 3992 or the Vacuum Cleaner Galaxy) is a barred spiral galaxy approximately 67.2 ± 23 million light-years away in the northern constellation Ursa Major.
- In Group: Spiral Galaxies, infobox 'type' field: SB(rs)bc (NED classification, de Vaucouleurs system) filed under Spiral Galaxies
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