NGC 4697

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
NGC 4697
NGC 4697 HST 10003 R850 B475.png
NGC 4697 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Right ascension12h 48m 35.9s[1]
Declination−05° 48′ 03″[1]
Redshift1241 ± 1 km/s[1]
Distance~ 38 Mly[1] / ~ 50 Mly[2]
Apparent magnitude (V)10.97[1]
Apparent size (V)4′.4 × 2′.8[2]
Other designations
Caldwell 52, UGCA 300, MCG -01-33-010, PGC 043276[1]
See also: Galaxy, List of galaxies

NGC 4697 (also known as Caldwell 52) is an elliptical galaxy some 40 to 50 million light-years away in the constellation Virgo. It is a member of the NGC 4697 Group, a group of galaxies also containing NGC 4731 and several generally much smaller galaxies [3] This group is about 55 million light-years away; it is one of the many Virgo II Groups, which form a southern extension of the Virgo Supercluster of galaxies.[3]

The distance to NGC 4697 is not known with high precision: measurements vary from 28 to 76 million light-years.[1] According to the NASA Extra-galactic Database, the average is about 38 million light-years;[1] according to SIMBAD, about 50 million light-years.[2]

The supermassive black hole at the core of NGC 4697 has a mass of 1.3+0.18
×108 M
as measured from Atacama Large Millimeter Array observations of the rotation of the central gas disk.[4]


  1. ^ a b c d e f g h i "NED results for object NGC 4697". NASA/IPAC Extragalactic Database. Retrieved 2010-11-28.
  2. ^ a b c "NGC 4697". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-11-28.
  3. ^ a b "The Virgo II Groups". Atlas of the Universe. Retrieved 2010-11-28.
  4. ^ Davis, T. A.; Bureau, M.; Onishi, K.; Cappellari, M.; Iguchi, S.; Sarzi, M. (2017). "WISDOM Project - II. Molecular gas measurement of the supermassive black hole mass in NGC 4697". Monthly Notices of the Royal Astronomical Society. 468: 4675. arXiv:1703.05248. Bibcode:2017MNRAS.468.4675D. doi:10.1093/mnras/stw3217.

External links[edit]