NGC 7427
Galaxy in the constellation Pegasus
From Wikipedia, the free encyclopedia
NGC 7427 is a lenticular galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 9336 ± 35 km/s, which corresponds to a Hubble distance of 137.70 ± 9.66 Mpc (~449 million light-years).[1] It was discovered by Russian astronomer Otto Wilhelm von Struve on 22 November 1865.[2]
Right ascension22h 57m 09.9277s[1]
Declination+08° 30′ 20.435″[1]
| NGC 7427 | |
|---|---|
NGC 7427 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 22h 57m 09.9277s[1] |
| Declination | +08° 30′ 20.435″[1] |
| Redshift | 0.032376[1] |
| Heliocentric radial velocity | 9706 ± 24 km/s[1] |
| Distance | 449.1 ± 31.5 Mly (137.70 ± 9.66 Mpc)[1] |
| Apparent magnitude (V) | 15.1[1] |
| Characteristics | |
| Type | SO[1] |
| Size | ~97,100 ly (29.76 kpc) (estimated)[1] |
| Apparent size (V) | 0.7′ × 0.7′[1] |
| Other designations | |
| 2MASX J22570990+0830200, MCG +01-58-016, Mrk 521, PGC 70091, CGCG 405-018[1] | |
Supernovae
Two supernovae have been observed in NGC 7427:
- SN 2019uzd (Type Ia, mag. 18.94) was discovered by the Automatic Learning for the Rapid Classification of Events (ALeRCE) on 16 November 2019.[3]
- SN 2023uma (Type Ia, mag. 18.13) was discovered by the Zwicky Transient Facility on 9 October 2023.[4]
