NGC 5921

NGC 5921 is a barred spiral galaxy located approximately 65 million light-years from the Solar System in the constellation Serpens Caput. It was discovered by William Herschel on 1 May 1786.[4] In February 2001 a type II supernova (SN 2001X) was discovered in NGC 5921.[5] It is a member of the Virgo III Groups, a series of galaxies and galaxy clusters strung out to the east of the Virgo Supercluster of galaxies.[6]

Hubble Space Telescope image of NGC 5921's center

See also

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 5921. Retrieved 2006-11-25.
  2. ^ "NGC 5921". Retrieved 2017-12-08.
  3. ^ An object's distance from Earth can be determined using Hubble's law: v=Ho is Hubble's constant (70±5 (km/s)/Mpc). The relative uncertainty Δd/d divided by the distance is equal to the sum of the relative uncertainties of the velocity and v=Ho
  4. ^ "New General Catalog Objects: NGC 5900 - 5949". cseligman.com. Retrieved 2017-12-08.
  5. ^ "Bright Supernovae - 2001". ASRAS. Archived from the original on 4 July 2015. Retrieved 3 July 2015.
  6. ^ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.