NGC 4477

NGC 4477 is a barred lenticular galaxy[2][3] located about 55 million light-years away[4] in the constellation of Coma Berenices.[5] NGC 4477 is classified as a type 2 seyfert galaxy.[2] The galaxy was discovered by astronomer William Herschel on April 8, 1784.[6] NGC 4477 is a member of Markarian's Chain which forms part of the larger Virgo Cluster.[7]

NGC 4477
SDSS image of NGC 4477
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension12h 30m 02.2s[1]
Declination13° 38′ 12″[1]
Redshift0.004463/1338 km/s[1]
Distance54.8 Mly
Group or clusterVirgo Cluster
Apparent magnitude (V)11.38[1]
Characteristics
TypeSB0(s) [1]
Size~69,340 ly (estimated)[1]
Apparent size (V)3.8 x 3.5[1]
Other designations
CGCG 70-129, IRAS 12275+1354, MCG 2-32-97, PGC 41260, UGC 7638, VCC 1253[1]

Physical characteristics

NGC 4477 has a very well-defined bar which is imbedded within an extensive lens-like envelope. It has a fairly sharp edge and is slightly enhanced near the rim, and is classified as a ring-like feature. Surrounding the ring, two broad, diffuse incomplete arcs appear to bracket the galaxy around the bar. In NGC 4477, it is suggested that the galaxy has a highly evolved double ring morphology. Also, both ring features are exceedingly washed out.[3]

See also
  • Image of the central region of the Virgo cluster of galaxies. NGC 4477 is at the edge of the upper-left central portion of the image.
  • NGC 4477 (SDSS DR14)

References
  1. "NASA/IPAC Extragalactic Database". Results for NGC 4477. Retrieved 2017-08-02.
  2. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-08-03.
  3. "NGC 4477 - (RL)SB0/a". The De Vaucouleurs Atlas of Galaxies. Retrieved 2017-08-03.
  4. HO, LUIS C.; SARZI, MARC; RIX, HANS-WALTER; SHIELDS, JOSEPH C.; RUDNICK, GREG; FILIPPENKO, ALEXEI V.; BARTH, AARON J. (30 October 2001). "An Efficient Strategy to Select Targets for Gasdynamical Measurements of Black Hole Masses Using the Hubble Space Telescope". Publications of the Astronomical Society of the Pacific. 114 (792): 137–143. arXiv:astro-ph/0110671. doi:10.1086/338546. S2CID 17982236.
  5. Rojas, Sebastián García. "Galaxy NGC 4477 - Galaxy in Coma Berenices Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-08-03.
  6. "New General Catalog Objects: NGC 4450 - 4499". cseligman.com. Retrieved 2017-08-01.
  7. "Exploring the Coma-Virgo Cloud" (PDF). GEMINI. 2:12: 1–9. April 1978.
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