Astronomy:NGC 4650

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NGC 4650
NGC 4650 (center) and LEDA 42911 (left) imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationCentaurus
Right ascension 12h 44m 19.6045s[1]
Declination−40° 43′ 54.403″[1]
Redshift0.009850±0.000123[1]
Helio radial velocity2,953±37 km/s[1]
Distance155.8 ± 11.2 Mly (47.77 ± 3.44 Mpc)[1]
Group or clusterNGC 4696 group (LGG 298); Centaurus Cluster[2][3]
Apparent magnitude (V)12.6[1]
Characteristics
TypeSB(rs)a[1]
Size~199,800 ly (61.25 kpc) (estimated)[1]
Apparent size (V)3.2′ × 2.8′[1]
Other designations
ESO 322- G 067, IRAS 12415-4027, MCG-07-26-038, PGC 42891[1]

NGC 4650 is a large barred spiral galaxy in the constellation of Centaurus. Its velocity with respect to the cosmic microwave background is 3,239±42 km/s, which corresponds to a Hubble distance of 155.8 ± 11.2 Mly (47.77 ± 3.44 Mpc).[1] Additionally, one non-redshift measurement gives a closer distance of 151.34 Mly (46.400 Mpc).[4] It was discovered by British astronomer John Herschel on 26 June 1834.[5]

NGC 4650 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[6][7]

NGC 4696 group and Centaurus Cluster

NGC 4650 belongs to the 79-member NGC 4696 galaxy group (also known as LGG 298). Some of the other members in the group include NGC 4373 (fr), NGC 4499 (fr), NGC 4507, NGC 4553 (fr), NGC 4743, NGC 4744, NGC 4767 (fr), NGC 4811 (fr), NGC 4812 (fr) and NGC 4832 (fr).[2][8] NGC 4650 is also a member of the Centaurus Cluster.[3]

See also

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 4650". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+4650. 
  2. ↑ 2.0 2.1 Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode: 1993A&AS..100...47G. 
  3. ↑ 3.0 3.1 "ACO 3526". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ACO+3526. 
  4. ↑ "Distance Results for NGC 4650". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+4650. 
  5. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4650". https://cseligman.com/text/atlas/ngc46a.htm#4650. 
  6. ↑ Chen, Yan-Ping; Zaw, Ingyin; Farrar, Glennys R.; Elgamal, Sana (2022). "A Uniformly Selected, Southern-sky 6dF, Optical AGN Catalog". The Astrophysical Journal Supplement Series 258 (2): 29. doi:10.3847/1538-4365/ac4157. Bibcode: 2022ApJS..258...29C. 
  7. ↑ "NGC 4650". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4650. 
  8. ↑ "NAME NGC 4696 Group". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NAME+NGC+4696+Group. 

Coordinates: Sky map 12h 44m 19.6045s, −40° 43′ 54.403″

Template:NGC objects: 4001-5000



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