NGC 4697

NGC 4697

NGC 4697 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Virgo
Right ascension 12h 48m 35.9s[1]
Declination −05° 48 03[1]
Redshift 1241 ± 1 km/s[1]
Distance ~ 38 Mly[1] / ~ 50 Mly[2]
Type E6[1]
Apparent dimensions (V) 4.4 × 2.8[2]
Apparent magnitude (V) 10.97[1]
Other designations
Caldwell 52

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]

References

  1. 1 2 3 4 5 6 7 8 "NASA/IPAC Extragalactic Database". Results for NGC 4697. Retrieved 2010-11-28.
  2. 1 2 3 "SIMBAD Astronomical Database". Results for NGC 4697. Retrieved 2010-11-28.
  3. 1 2 "The Virgo II Groups". Atlas of the Universe. Retrieved 2010-11-28.

External links

This article is issued from Wikipedia - version of the Sunday, July 19, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.