NGC 958
Galaxy in the constellation Cetus From Wikipedia, the free encyclopedia
Galaxy in the constellation Cetus From Wikipedia, the free encyclopedia
NGC 958 is a barred spiral galaxy in the constellation of Cetus. Its velocity with respect to the cosmic microwave background is 5505 ± 17 km/s, which corresponds to a Hubble distance of 81.20 ± 5.69 Mpc (∼265 million light-years).[1] However, 19 non-redshift measurements give a distance of 58.93 ± 12.91 Mpc (∼192 million light-years).[2] The galaxy was discovered by German-British astronomer William Herschel on 20 September 1784.[3]
| NGC 958 | |
|---|---|
The barred spiral galaxy NGC 958. | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 02h 30m 42.83s[1] |
| Declination | −02° 56′ 20.4″[1] |
| Redshift | 0.019150 [1] |
| Heliocentric radial velocity | 5741 ± 2 km/s[1] |
| Distance | 264.8 ± 18.6 Mly (81.20 ± 5.69 Mpc)[1] |
| Apparent magnitude (V) | 12.2[1] |
| Characteristics | |
| Type | SB(rs)c?[1] |
| Size | ~161,200 ly (49.43 kpc) (estimated)[1] |
| Apparent size (V) | 2.9' x 0.9'[1] |
| Other designations | |
| IRAS 02281-0309, 2MASX J02304283-0256204, MCG -01-07-019, PGC 9560[1] | |
The Simbad database lists NGC 958 as a Seyfert II Galaxy, i.e. it has a quasar-like nuclei with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4] The NASA/IPAC Extragalactic Database (NED) lists NGC 958 as a Luminous infrared galaxy (LIRG).[1]
Three supernovae have been observed in NGC 958: SN 2005A (type Ia, mag. 17.1),[5] SN 2022ao (type Ic, mag. 18),[6] and SN 2022acbu (type II, mag. 20.3).[7]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
