Q34500
Sign in to savespiral galaxy in the constellation Andromeda
Key facts
- Constellation
- Andromeda
- Right ascension
- 00 10 46.9
- Declination
- +33 ° 21 ′ 10 ″
- Heliocentric radial velocity
- 4,770 ± 4 km/s
- Distance
- 234 ± 29 M ly , (71.7 ± 8.9 M pc )
- Apparent magnitude v
- +12.8
- Type
- SAB(s)bc
- Apparent size v
- 1.2′ × 0.59′
via Wikipedia infobox
Article
NGC 21 (also known as NGC 29) is a spiral galaxy in the Andromeda constellation. It was discovered by German-British astronomer William Herschel on 26 November 1790. Lewis Swift observed it again in 1885, leading to its double listing in the New General Catalogue.
NGC 7831 Group