The Pinwheel Galaxy, also known as Messier 101 or NGC 5457, is a face-on, counterclockwise intermediate spiral galaxy located about 21 million light-years from Earth in the constellation Ursa Major. It was discovered by Pierre Mechain in 1781 and communicated that year to Charles Messier, who added it to his catalogue.
Facts
Object TypeIntermediate spiral galaxy 1 Orbital Distance21 million light-years (6.4 Mpc) from Earth 1 Discovery Year Classification
Constellation In the Other Atlases
Credited To
Also in Science Atlas: credited with this subject.
Source Wikipedia (space and spaceflight articles)
In Constellation
Also in Divinity Atlas: the constellation this subject lies in.
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationPinwheel Galaxy, infobox (Distance)Quote, Pinwheel Galaxy, infobox (Distance)
21.6 +/- 0.28 Mly (6.644 +/- 0.087 Mpc)
2. Wikidata: Pinwheel Galaxy
Pinwheel Galaxy (Wikipedia)
Pinwheel Galaxy, lead section
a face-on, counterclockwise intermediate spiral galaxy
Lead section
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on, counterclockwise intermediate spiral galaxy located 21 million light-years (6.4 megaparsecs) from Earth in the constellation Ursa Major.
Pinwheel Galaxy, Wikipedia - lead section, constellation
The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on, counterclockwise intermediate spiral galaxy located 21 million light-years (6.4 megaparsecs) from Earth in the constellation Ursa Major.
- In Group: Spiral Galaxies, infobox 'type' field: SAB(rs)cd (NED classification, de Vaucouleurs system) filed under Spiral Galaxies
- In Category: Celestial Objects, Pinwheel Galaxy, Wikipedia summary
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