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NGC 4762

From Wikipedia, the free encyclopedia
Lenticular galaxy in the constellation Virgo
NGC 4762
Observation data (J2000epoch)
ConstellationVirgo
Right ascension12h 52m 56.05s[1]
Declination+11° 13′ 51″[1]
Redshift986 ± 5km/s[1]
Distance58Mly (17.8Mpc)[1]
Group orclusterVirgo Cluster
Apparent magnitude (V)11.12
Characteristics
TypeSB(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-onlenticular galaxy in the constellationVirgo. It is at a distance of 60 millionlight years and is a member of theVirgo Cluster. The edge-on view of this particular galaxy, originally considered to be abarred 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 aLiner-typeactive 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 galaxyNGC 4754.[4]

Gallery

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  • SDSS image of NGC 4762
    SDSS image of NGC 4762
  • HST image of NGC 4762
    HST image of NGC 4762

References

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  1. ^abcdefg"NASA/IPAC Extragalactic Database".Results for NGC 4762. Retrieved2016-01-18.
  2. ^ab"A galaxy on the edge".www.spacetelescope.org. ESA/Hubble & NASA. Retrieved25 January 2016.
  3. ^"Object of the Week May 18, 2014 The Flattest Galaxy NGC 4762".www.deepskyforum.com. Retrieved2017-09-25.
  4. ^"Detailed Object Classifications".ned.ipac.caltech.edu. Retrieved2017-09-25.

External links

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