Coordinates: Sky map 12h 34m 50.9s, 15° 33′ 06″

NGC 4540

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NGC 4540
NGC 4540 HST
Hubble Space Telescope image of NGC 4540.
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension12h 34m 50.9s[1]
Declination15° 33′ 06″[1]
Redshift0.004306[1]
Heliocentric radial velocity1291 km/s[1]
Distance64 Mly[2]
Group or clusterVirgo Cluster
Apparent magnitude (V)12.44[1]
Characteristics
TypeSAB(rs)cd, Sy1[1]
Size~39,120 ly (estimated)[1]
Apparent size (V)1.9 x 1.5[1]
Other designations
PGC 41876, UGC 7742, IRAS 12323+1549, MCG 3-32-74, CGCG 99-93, VCC 1588[1]

NGC 4540 is a spiral galaxy with type 1 Seyfert activity[3] located about 64 million light-years away[4] in the constellation Coma Berenices.[5] NGC 4540 was discovered by astronomer William Herschel on March 21, 1784[6] and is a member of the Virgo Cluster.[7][8]

See also

NGC 4540 (SDSS DR14)

References

  1. ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 4540. Retrieved 2018-01-04.
  2. ^ "parsecs to lightyears conversion". Retrieved 2017-09-30.
  3. ^ Normandin, George P. "Galaxies IC 3528 and NGC 4540, Supernova 2001z". www.kopernik.org. Retrieved 2018-01-05.
  4. ^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-01-05.
  5. ^ "Revised NGC Data for NGC 4540". spider.seds.org. Retrieved 2018-01-05.
  6. ^ "New General Catalog Objects: NGC 4500 - 4549". cseligman.com. Retrieved 2018-01-05.
  7. ^ "The Virgo Cluster". www.atlasoftheuniverse.com. Retrieved 2018-01-05.
  8. ^ "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2018-01-05.

External links



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