NGC 7312 is a barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 7911 ± 26 km/s, which corresponds to a Hubble distance of 116.68 ± 8.18 Mpc (∼381 million light-years).[1] It was discovered by German astronomer Albert Marth on 30 October 1863.[2]
| NGC 7312 | |
|---|---|
 The barred spiral galaxy NGC 7312. | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 22h 34m 34.79s[1] |
| Declination | +05° 49′ 02.5″[1] |
| Redshift | 0.027609[1] |
| Heliocentric radial velocity | 8277 ± 1 km/s[1] |
| Distance | 380.6 ± 26.7 Mly (116.68 ± 8.18 Mpc)[1] |
| Apparent magnitude (V) | 13.4[1] |
| Characteristics | |
| Type | SB(s)b[1] |
| Size | ~225,000 ly (68.97 kpc) (estimated)[1] |
| Apparent size (V) | 1.5' x 0.8'[1] |
| Other designations | |
| PGC 69198, UGC 12083, CGCG 404-023, MCG +01-57-010, 2MASX J22343478+0549025[1] | |
According to the NASA/IPAC database, NGC 7312 forms a galaxy pair with NGC 7311 (also known as UGC 12080).[1] The Hubble distance to NGC 7311 is 61.33 ± 4.31 Mpc (∼200 million al), which means that it is much closer than NGC 7312, and therefore the pairing is purely optical.
Two supernovae have been observed in NGC 7312: PSNJ22343424+0548478 (type II, mag 16.6, discovered 17 September 2015)[3] and SN 2024ixe (type IIb, mag. 19.7).[4]
See also
editReferences
edit- ^ a b c d e f g h i j k l "NASA/IPAC Extragalactic Database". Results for NGC 7312. Retrieved 2 August 2024.
- ^ Celestial Atlas entry for NGC 7312. Retrieved 2 August 2024.
- ^ The Astronomer's Telegram #8073. Retrieved 2 August 2024.
- ^ Transient Name Server entry for SN 2024ixe. Retrieved 2 August 2024.
External links
edit
Media related to NGC 7312 at Wikimedia Commons- NGC 7312 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
