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NGC 5921

Coordinates:Sky map15h 21m 56.5s, +05° 04′ 14″
From Wikipedia, the free encyclopedia
Galaxy in the constellation Serpens
NGC 5921
NGC 5921 as taken at theMount Lemmon SkyCenter
Observation data (J2000epoch)
ConstellationSerpens Caput
Right ascension15h 21m 56.5s[1]
Declination+05° 04′ 14″[1]
Redshift0.00470 ± 0.00001[2]
Heliocentric radial velocity1480 ± 1 km/s[1]
Distance65Mly[3]
Apparent magnitude (V)11.5[1]
Characteristics
TypeSB(r)bc[1]
Apparent size (V)4.9 × 4.0[1]
Other designations
UGC 9824,[1]PGC 54849[1]

NGC 5921 is abarred spiral galaxy located approximately 65 millionlight-years from theSolar System in theconstellationSerpens Caput. It was discovered byWilliam Herschel on 1 May 1786.[4] In February 2001 atype II supernova (SN 2001X) was discovered in NGC 5921.[5] It is a member of theVirgo III Groups, a series of galaxies andgalaxy clusters strung out to the east of theVirgo Supercluster of galaxies.[6]

Hubble Space Telescope image of NGC 5921's center

See also

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References

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  1. ^abcdefgh"NASA/IPAC Extragalactic Database".Results for NGC 5921. Retrieved2006-11-25.
  2. ^"NGC 5921". Retrieved2017-12-08.
  3. ^An object's distance from Earth can be determined usingHubble'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 andv=Ho
  4. ^"New General Catalog Objects: NGC 5900 - 5949".cseligman.com. Retrieved2017-12-08.
  5. ^"Bright Supernovae - 2001".ASRAS. Archived fromthe original on 4 July 2015. Retrieved3 July 2015.
  6. ^"The Virgo III Groups".Atlas of the Universe. Retrieved2010-11-27.

External links

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