NGC 6308
Galaxy in the constellation Hercules
From Wikipedia, the free encyclopedia
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]
Right ascension17h 11m 59.6895s[1]
Declination+23° 22′ 48.37″[1]
| NGC 6308 | |
|---|---|
NGC 6308 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Hercules |
| Right ascension | 17h 11m 59.6895s[1] |
| Declination | +23° 22′ 48.37″[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′ × 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 has been identified as field 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. 20.4214) was discovered by the Zwicky Transient Facility on 9 August 2023.[4]
