Astronomy:NGC 4477
| NGC 4477 | |
|---|---|
 SDSS image of NGC 4477 | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 30m 02.2s[1] |
| Declination | 13° 38′ 12″[1] |
| Redshift | 0.004463/1338 km/s[1] |
| Distance | 54.8 Mly |
| Group or cluster | Virgo Cluster |
| Apparent magnitude (V) | 11.38[1] |
| Characteristics | |
| Type | SB0(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] | |
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]
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.[3]
See also
Gallery
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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NASA/IPAC Extragalactic Database". Results for NGC 4477. http://nedwww.ipac.caltech.edu/.
- ↑ 2.0 2.1 "Your NED Search Results". https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4477&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ 3.0 3.1 "NGC 4477 - (RL)SB0/a". http://kudzu.astr.ua.edu/devatlas/NGC_4477______Ks__________.html.
- ↑ 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. doi:10.1086/338546.
- ↑ Rojas, Sebastián García. "Galaxy NGC 4477 - Galaxy in Coma Berenices Constellation · Deep Sky Objects Browser" (in en). https://dso-browser.com/deep-sky/5523/ngc-4477/galaxy.
- ↑ "New General Catalog Objects: NGC 4450 - 4499" (in en-US). http://cseligman.com/text/atlas/ngc44a.htm#4457.
- ↑ "Exploring the Coma-Virgo Cloud". GEMINI 2:12: 1–9. April 1978. http://oldsite.mnastro.org/gemini/files/gemini_197804.pdf. Retrieved 2017-08-04.
External links
- NGC 4477 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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