NGC 5921

NGC 5921
NGC 5921 as taken at the Mount Lemmon SkyCenter
Observation data (J2000 epoch)
Constellation	Serpens Caput
Right ascension	15^h 21^m 56.5^s[1]
Declination	+05° 04′ 14″[1]
Redshift	0.00470 ± 0.00001[2]
Heliocentric radial velocity	1480 ± 1 km/s[1]
Distance	65 Mly[3]
Apparent magnitude (V)	11.5[1]
Characteristics
Type	SB(r)bc[1]
Size	87,300 ly (26.78 kpc) (diameter; D25 isophote)[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]

Hubble Space Telescope image of NGC 5921's center

See also

• Spiral Galaxy NGC 1300
• List of NGC objects (5001–6000)

References

1. "NASA/IPAC Extragalactic Database". Results for NGC 5921. Retrieved 2026-03-12.
2. "NGC 5921". Retrieved 2017-12-08.
3. An object's distance from Earth can be determined using Hubble's law: v=H_o 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=H_o
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.

External links

• Media related to NGC 5921 at Wikimedia Commons
• NGC 5921 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
• SEDS
• NOAO: NGC 5921 Archived 2009-06-27 at the Wayback Machine