Astronomy:NGC 4168
| NGC 4168 | |
|---|---|
 NGC 4168 with NGC 4165 (above, to the right) and NGC 4164 (to the right), imaged by Legacy Surveys | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 12m 17.2685s[1] |
| Declination | +13° 12′ 18.701″[1] |
| Redshift | 0.007582±0.00000667[1] |
| Helio radial velocity | 2,273±2 km/s[1] |
| Distance | 98.35 ± 10.89 Mly (30.154 ± 3.338 Mpc)[1] |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 12.4g[1] |
| Characteristics | |
| Type | E2[1] |
| Size | ~80,100 ly (24.56 kpc) (estimated)[1] |
| Apparent size (V) | 2.03′ × 1.58′[1] |
| Other designations | |
| VCC 49, UGC 7203, MCG+02-31-046, PGC 38890[1] | |
NGC 4168 is an elliptical galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 2,609±24 km/s, which corresponds to a Hubble distance of 125.5 ± 8.9 Mly (38.48 ± 2.72 Mpc).[1] However, 13 non-redshift measurements give a closer mean distance of 98.35 ± 10.89 Mly (30.154 ± 3.338 Mpc).[2] It was discovered by German-British astronomer William Herschel on 8 April 1784.[3]
NGC 4168 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[4][5]
Virgo cluster
NGC 4168 is a member of the Virgo Cluster.[5][6]
Supernova
One supernova has been observed in NGC 4168:
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 4168". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+4168.
- ↑ "Distance Results for NGC 4168". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+4168.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4168". https://cseligman.com/text/atlas/ngc41a.htm#4168.
- ↑ Véron-Cetty, M.-P.; Véron, P. (2010). "A catalogue of quasars and active nuclei: 13th edition". Astronomy and Astrophysics 518: A10. doi:10.1051/0004-6361/201014188. Bibcode: 2010A&A...518A..10V.
- ↑ 5.0 5.1 "NGC 4168". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4168.
- ↑ "NAME Virgo Cluster". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NAME+Virgo+Cluster.
- ↑ "SN 2026acd". IAU. https://www.wis-tns.org/object/2026acd.
External links
- NGC 4168 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
12h 12m 17.2685s, +13° 12′ 18.701″
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