Astronomy:NGC 4762
| NGC 4762 | |
|---|---|
| File:Potw1443a.tif NGC 4762 by Hubble Space Telescope. | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 52m 56.05s[1] |
| Declination | +11° 13′ 51″[1] |
| Redshift | 986 ± 5 km/s[1] |
| Distance | 58 Mly (17.8 Mpc)[1] |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 11.12 |
| Characteristics | |
| Type | SB(r)0^0^, LINER[1] |
| Apparent size (V) | 8.7′ × 1.7′[1] |
| Other designations | |
| UGC 8016, PGC 43733, VCC 2095[1] | |
NGC 4762 is an edge-on lenticular galaxy in the constellation Virgo. It is at a distance of 60 million light years and is a member of the Virgo Cluster. The edge-on view of this particular galaxy, originally considered to be a barred spiral galaxy, makes it difficult to determine its true shape, but it is considered that the galaxy consists of four main components — a central bulge, a bar, a thick disc and an outer ring. The galaxy's disc is asymmetric and warped, which could be explained by NGC 4762 merging with a smaller galaxy in the past. The remains of this former companion may then have settled within NGC 4762's disc, redistributing the gas and stars and so changing the disc's morphology.[2]
NGC 4762 contains a Liner-type active galactic nucleus, a highly energetic central region. This nucleus is detectable due to its particular spectral line emission, allowing astronomers to measure the composition of the region.[2]
NGC 4762 forms a non-interacting[3] pair with the galaxy NGC 4754.[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NASA/IPAC Extragalactic Database". Results for NGC 4762. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+4762.
- ↑ 2.0 2.1 "A galaxy on the edge" (in en-GB). ESA/Hubble & NASA. https://www.spacetelescope.org/images/potw1443a/.
- ↑ "Object of the Week May 18, 2014 The Flattest Galaxy NGC 4762" (in en). http://www.deepskyforum.com/showthread.php?571-Object-of-the-Week-May-18-2014-The-Flattest-Galaxy-NGC-4762.
- ↑ "Detailed Object Classifications". http://ned.ipac.caltech.edu/cgi-bin/NEDatt?objname=NGC+4762.
External links
- NGC 4762 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- NED entry on NGC 4762
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