NGC 4477

Last updated
NGC 4477
SDSS NGC 4477.jpg
SDSS image of NGC 4477
Observation data (J2000 epoch)
Constellation Coma Berenices [1]
Right ascension 12h 30m 02.2s [2]
Declination 13° 38′ 12″ [2]
Redshift 0.004463 [2]
Heliocentric radial velocity 1,338 km/s [1]
Distance 54.8  Mly (16.8  Mpc)
Group or cluster Virgo Cluster
Apparent magnitude  (V)10.4 [1]
Characteristics
Type SB0(s) [2]
Size~69,340 ly (estimated) [2]
Apparent size  (V)3.7′ × 3.3′ [1]
Other designations
VCC 1253, IRAS 12275+1354, UGC 7638, MCG 2-32-97, PGC 41260, CGCG 70-129 [2]

NGC 4477 is a barred lenticular galaxy [3] [4] in the constellation of Coma Berenices. [5] It is classified as a type 2 Seyfert galaxy. [3] This galaxy was discovered by German-British astronomer William Herschel on April 8, 1784. [6] NGC 4477 is located about 55 million light-years away, [7] where it is a member of Markarian's Chain in the Virgo Cluster of galaxies. [8]

Contents

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. It is suggested that NGC 4477 has a highly evolved double ring morphology. Also, both ring features are exceedingly washed out. [4]

See also

References

  1. 1 2 3 4 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 304. doi:10.1007/978-3-319-03170-5. ISBN   978-3-319-03169-9.
  2. 1 2 3 4 5 6 "NASA/IPAC Extragalactic Database". Results for NGC 4477. Retrieved 2017-08-02.
  3. 1 2 "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-08-03.
  4. 1 2 "NGC 4477 - (RL)SB0/a". The De Vaucouleurs Atlas of Galaxies. Archived from the original on 2019-03-02. Retrieved 2017-08-03.
  5. ↑ Rojas, Sebastián García. "Galaxy NGC 4477 - Galaxy in Coma Berenices Constellation · Deep Sky Objects Browser". DSO Browser. Archived from the original on 2017-08-04. Retrieved 2017-08-03.
  6. ↑ "New General Catalog Objects: NGC 4450 - 4499". cseligman.com. Retrieved 2017-08-01.
  7. ↑ 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.
  8. ↑ "Exploring the Coma-Virgo Cloud" (PDF). GEMINI. 2 (12): 1–9. April 1978. Archived from the original (PDF) on 2014-09-25. Retrieved 2017-08-04.
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