NGC 22
Spiral galaxy in the constellation Pegasus
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NGC 22 is a spiral galaxy located in the Pegasus constellation. It was discovered in 1883 by French astronomer Édouard Stephan and was catalogued as the 22nd object in the New General Catalogue, compiled by J. L. E. Dreyer in 1888. The galaxy has an apparent visual magnitude of +14.4 and spans an angular size of 1.25′ × 0.85′.[5]
| NGC 22 | |
|---|---|
| |
| Observation data (J 2000.0 epoch) | |
| Constellation | Pegasus |
| Right ascension | 00h 09m 48.2s[1] |
| Declination | +27° 49′ 56″[1] |
| Redshift | 0.027726[1] |
| Heliocentric radial velocity | 8,312 ± 1 km/s[1] |
| Distance | 354 ± 25 Mly 108.5 ± 7.8 Mpc[2] |
| Apparent magnitude (V) | +14.4[1] |
| Absolute magnitude (V) | −20.53[3] |
| Characteristics | |
| Type | Sb[4] |
| Apparent size (V) | 1.25′ × 0.85′[5] |
| Other designations | |
| IRAS F00072+2733, NGC 22, UGC 86, LEDA 690, MCG +05-01-039, PGC 690 | |
The morphological classification of this galaxy is Sb,[4] indicating a spiral form with somewhat tightly wound arms. It is located at a distance of 354 ± 25 million light-years (108.5 ± 7.8 Mpc) from the Milky Way.[2]
