NGC 958

NGC 958
The barred spiral galaxy NGC 958
Observation data (J2000 epoch)
Constellation	Cetus
Right ascension	02h 30m 42.8350s[1]
Declination	−02° 56′ 20.126″[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′ × 0.9′[1]
Other designations
IRAS 02281-0309, 2MASX J02304283-0256204, MCG -01-07-019, PGC 9560[1]

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]

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) was discovered by the Lick Observatory Supernova Search (LOSS) on 5 January 2005.^[5][6]
• SN 2022ao (type Ic, mag. 18) was discovered by ATLAS on 5 January 2022.^[7]
• SN 2022acbu (type II, mag. 20.34) was discovered by the Zwicky Transient Facility on 30 November 2022.^[8]

• List of NGC objects (1–1000)

• Media related to NGC 958 at Wikimedia Commons
• NGC 958 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images