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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
Hubble Space Telescope image of NGC 5921's center
NGC 5921
NGC 5921 as taken at the Mount Lemmon SkyCenter
Observation data (J2000 epoch)
ConstellationSerpens Caput
Right ascension15h 21m 56.5s[1]
Declination+05° 04 14[1]
Redshift0.00470 ± 0.00001[2]
Helio radial velocity1480 ± 1 km/s[1]
Distance65 Mly[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]

See also



References


  1. "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.




На других языках


[de] NGC 5921

NGC 5921 ist eine 10,7 mag helle Balkenspiralgalaxie vom Hubble-Typ SBbc im Sternbild Schlange und 68 Millionen Lichtjahre von der Milchstraße entfernt.
- [en] NGC 5921

[ru] NGC 5921

NGC 5921 (другие обозначения — UGC 9824, MCG 1-39-21, ZWG 49.146, IRAS15194+0514, PGC 54849) — галактика в созвездии Змея.



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