NGC 5921

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NGC 5921
N5921s.jpg
NGC 5921 as taken at the Mount Lemmon SkyCenter
Observation data (J2000 epoch)
Constellation Serpens Caput
Right ascension 15h 21m 56.5s [1]
Declination +05° 04′ 14″ [1]
Redshift 0.00470 ± 0.00001 [2]
Helio radial velocity 1480 ± 1 km/s [1]
Distance 65 Mly [3]
Apparent magnitude  (V)11.5 [1]
Characteristics
Type SB(r)bc [1]
Apparent size  (V)4.9′ × 4.0′ [1]
Other designations
UGC 9824, [1] PGC 54849 [1]

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]

Contents

Hubble Space Telescope image of NGC 5921's center NGC5921 - HST - Potw2214a.jpg
Hubble Space Telescope image of NGC 5921's center

See also

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References

  1. 1 2 3 4 5 6 7 8 "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.


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