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 ascension 12h 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.
  • Hubble Image of the central region of NGC 4477.

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 GAS-DYNAMICAL 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.
  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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