NGC 4162
| NGC 4162 | |
|---|---|
 NGC 4162 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 11m 52.5190s |
| Declination | +24° 07′ 25.346″ |
| Redshift | 0.008579±0.000005 |
| Heliocentric radial velocity | 2,572±1 km/s |
| Distance | 118.00 ± 5.96 Mly (36.179 ± 1.828 Mpc) |
| Apparent magnitude (V) | 12.87 |
| Characteristics | |
| Type | (R)SA(rs)bc |
| Size | ~85,800 ly (26.31 kpc) (estimated) |
| Apparent size (V) | 2.3′ × 1.4′ |
| Other designations | |
| IRAS 12093+2423, UGC 7193, MCG +04-29-046, PGC 038851, CGCG 128-051 | |
NGC 4162 is a spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is 2,878±21 km/s, which corresponds to a Hubble distance of 138.5 ± 9.8 Mly (42.45 ± 2.99 Mpc). However, 19 non-redshift measurements give a closer mean distance of 118.00 ± 5.96 Mly (36.179 ± 1.828 Mpc). It was discovered by German-British astronomer William Herschel on 10 April 1785.
NGC 4162 has an active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.
Supernovae
Three supernovae have been observed in NGC 4162:
- SN 1965G (type unknown, mag. 14) was discovered by Mexican astronomer Guillermo Haro on 23 March 1965.
- SN 2001hg (Type II, mag. 17.4) was discovered by Tim Puckett and Ajai Sehgal on 4 December 2001.
- SN 2019edo (Type II, mag. 16.7) was discovered by ASAS-SN on 27 April 2019.
See also
References
- 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 4162". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 4 August 2025.
- ↑ "Distance Results for NGC 4162". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 4 August 2025.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4162". Celestial Atlas. Retrieved 4 August 2025.
- ↑ "NGC 4162". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 4 August 2025.
- ↑ Haro, G. (26 April 1965). Gingerich, Owen (ed.). "SUPERNOVA IN NGC 4162". Central Bureau Electronic Telegrams (1904). Smithsonian Astrophysical Observatory, IAU: 1. Retrieved 4 August 2025.
- ↑ "SN 1965G". Transient Name Server. IAU. Retrieved 4 August 2025.
- ↑ Puckett, T.; Sehgal, A. (2001). "Supernova 2001hg in NGC 4162". International Astronomical Union Circular (7766): 1. Bibcode:2001IAUC.7766....1P.
- ↑ "SN 2001hg". Transient Name Server. IAU. Retrieved 4 August 2025.
- ↑ Brimacombe, J.; et al. (2019). "Discovery of 10 ASAS-SN Supernovae". The Astronomer's Telegram. 12713: 1. Bibcode:2019ATel12713....1B.
- ↑ "SN 2019edo". Transient Name Server. IAU. Retrieved 4 August 2025.
External links
Media related to NGC 4162 at Wikimedia Commons- NGC 4162 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
