| NGC 6308 | |
|---|---|
 The intermediate spiral galaxy NGC 6308. | |
| Observation data (J2000 epoch) | |
| Constellation | Hercules |
| Right ascension | 17h 11m 59.7148s[1] |
| Declination | +23° 22′ 47.795″[1] |
| Redshift | 0.029402 [1] |
| Heliocentric radial velocity | 8814 ± 3 km/s[1] |
| Distance | 423.2 ± 29.6 Mly (129.74 ± 9.08 Mpc)[1] |
| Apparent magnitude (V) | 13.4[1] |
| Characteristics | |
| Type | SAB(rs)c?[1] |
| Size | ~198,600 ly (60.89 kpc) (estimated)[1] |
| Apparent size (V) | 1.1' x 1.0'[1] |
| Other designations | |
| IRAS 17099+2326, 2MASX J17115972+2322483, UGC 10747, MCG +04-40-021, PGC 59807, CGCG 139-043[1] | |
NGC 6308 is a large intermediate spiral galaxy in the constellation of Hercules. Its velocity with respect to the cosmic microwave background is 8797 ± 3 km/s, which corresponds to a Hubble distance of 129.74 ± 9.08 Mpc (∼423 million light-years).[1] It was discovered by German astronomer Albert Marth on 6 June 1863.[2]
NGC 6308 has been identified as an isolated galaxy, i.e. it does not belong to a cluster or group.[3]
One supernova has been observed in NGC 6308: SN 2023oyz (type Ic, mag 20.4).[4]
- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 6308. Retrieved 6 August 2024.
- ^ Celestial Atlas entry for NGC 6308. Retrieved 6 August 2024.
- ^ Isolated galaxies. By Vettolani, G.; de Souza, R.; Chincarini, G. Astronomy and Astrophysics, Vol. 154, p. 343-348 (1986) Retrieved 6 August 2024.
- ^ Transient Name Server entry for SN 2023oyz. Retrieved 6 August 2024.