| NGC 5251 | |
|---|---|
 The barred spiral galaxy NGC 5251. | |
| Observation data (J2000 epoch) | |
| Constellation | Boötes |
| Right ascension | 13h 37m 24.8276s[1] |
| Declination | +27° 25′ 09.163″[1] |
| Redshift | 0.036558 [1] |
| Heliocentric radial velocity | 10960 ± 3 km/s[1] |
| Distance | 538.9 ± 37.7 Mly (165.22 ± 11.57 Mpc)[1] |
| Apparent magnitude (V) | 13.9[1] |
| Characteristics | |
| Type | S?[1] |
| Size | ~183,100 ly (56.14 kpc) (estimated)[1] |
| Apparent size (V) | 0.7' x 0.7'[1] |
| Other designations | |
| IRAS F13351+2740, 2MASX J13372485+2725097, MCG +05-32-044, PGC 48119, CGCG 161-090[1] | |
NGC 5251 is a barred spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 11202 ± 17 km/s, which corresponds to a Hubble distance of 165.22 ± 11.57 Mpc (∼539 million light-years).[1] It was discovered by German-British astronomer William Herschel on 11 April 1785.[2]
The SIMBAD database lists NGC 5251 as a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[3]
One supernova has been observed in NGC 5251: SN 2024bci (type Ia, mag. 18.8).[4]
- ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 5251. Retrieved 14 August 2024.
- ^ Seligman, Courtney. "NGC 5251". Celestial Atlas. Retrieved 14 August 2024.
- ^ "NGC 5251". SIMBAD astronomical database. Strasbourg Astronomy Data Centre. Retrieved 14 August 2024.
- ^ "SN 2024bci". Transient Name Server. IAU. Retrieved 14 August 2024.