NGC 7427
| NGC 7427 | |
|---|---|
 The lenticular galaxy NGC 7427 | |
| 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' x 0.7'[1] |
| Other designations | |
| 2MASX J22570990+0830200, MCG +01-58-016, Mrk 521, PGC 70091, CGCG 405-018[1] | |
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]
Supernovae
[edit]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]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "Results for NGC 7427". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 3 August 2024.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 7427". Celestial Atlas. Retrieved 15 December 2024.
- ^ "SN 2019uzd". Transient Name Server. IAU. Retrieved 15 December 2024.
- ^ "SN 2023uma". Transient Name Server. IAU. Retrieved 15 December 2024.
External links
[edit]
Media related to NGC 7427 at Wikimedia Commons- NGC 7427 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
