NGC 24
Galaxy in the constellation Sculptor
From Wikipedia, the free encyclopedia
NGC 24 is a spiral galaxy in the southern constellation of Sculptor, about 23.8 megalight-years distant from the Milky Way.[3] It was discovered by British astronomer William Herschel in 1785, and measures some 40,000 light-years across.[7] The general shape of this galaxy is specified by its morphological classification of SA(s)c,[5] which indicates it is an unbarred spiral with no ring-like structure and moderate to loosely-wound spiral arms. This galaxy is positioned in the vicinity of the Sculptor Group, but is actually a background object that is about two times as distant. It may form a pair with another background galaxy, NGC 45.[8]
Right ascension00h 09m 56.542s[1]
Declination−24° 57′ 47.27″[1]
| NGC 24 | |
|---|---|
HST image of NGC 24 | |
| Observation data (J2000 epoch) | |
| Constellation | Sculptor |
| Right ascension | 00h 09m 56.542s[1] |
| Declination | −24° 57′ 47.27″[1] |
| Redshift | 0.00185±0.00001[2] |
| Heliocentric radial velocity | 554.017±2.099 km/s[2] |
| Distance | 23.8 Mly (7.31 Mpc)[3] |
| Apparent magnitude (V) | +12.4[4] |
| Absolute magnitude (V) | −17.61 |
| Characteristics | |
| Type | SA(s)c[5] |
| Apparent size (V) | 5.7' x 1.5' |
| Other designations | |
| UGCA 2, ESO 472-G016, MCG-04-01-018, ESO-LV 4720160,[6] PGC 701, CGS 119[4] | |
