Astronomy:NGC 3972

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Short description: Galaxy in the constellation Ursa Major
NGC 3972
NGC3972 - HST- Potw1810a.jpg
NGC 3972 taken by Hubble Space Telescope.[1]
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension 11h 55m 45.1s[2]
Declination+55° 19′ 14″[2]
Redshift0.002799[3]
Helio radial velocity846 km/s[2]
Distance66.0 Mly (20.23 Mpc)[2]
Group or clusterNGC 3992 Group[4]
Apparent magnitude (V)13.14[3]
Characteristics
TypeSA(s)bc,[5] SBbc[6]
Other designations
IRAS 11531+5535, UGC 6904, MCG09-20-032[3]

NGC 3972 is a spiral galaxy located in the northern constellation of Ursa Major. It was discovered by William Herschel on April 14, 1789.[7] This galaxy is located 66 million light years away and is receding with a heliocentric radial velocity of 846 km/s.[2] It is a member of the NGC 3992 Group of galaxies.[4]

Type Ia supernova SN 2011by was discovered in this galaxy on April 26, 2011, by Zhangwei Jin and Xing Gao in China. It was magnitude 14.2 ten days short of maximum, and positioned at an offset 5.3″ east and 19.1″ north of the galactic nucleus.[8]

Gallery

References

  1. ↑ "Galaxy full of cosmic lighthouses". https://www.spacetelescope.org/images/potw1810a/. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Tully, R. Brent et al. (2016). "Cosmicflows-3". The Astronomical Journal 152 (2): 21. doi:10.3847/0004-6256/152/2/50. 50. Bibcode: 2016AJ....152...50T. 
  3. ↑ 3.0 3.1 3.2 "NGC 3972". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3972. 
  4. ↑ 4.0 4.1 Karachentsev, I. D. et al. (March 2013). "Anatomy of Ursa Majoris". Monthly Notices of the Royal Astronomical Society 429 (3): 2264–2273. doi:10.1093/mnras/sts494. Bibcode: 2013MNRAS.429.2264K. 
  5. ↑ "Results for object NGC 3972 (NGC 3972)". NASA/IPAC Extragalactic Database. California Institute of Technology. https://ned.ipac.caltech.edu/byname?objname=NGC%203972&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1. Retrieved 2021-02-18. 
  6. ↑ Paturel, G. et al. (December 2003). "HYPERLEDA. I. Identification and designation of galaxies". Astronomy and Astrophysics 412: 45–55. doi:10.1051/0004-6361:20031411. Bibcode: 2003A&A...412...45P. 
  7. ↑ Seligman, Courtney. "New General Catalog Objects: NGC 3950 - 3999". https://cseligman.com/text/atlas/ngc39a.htm#3972. 
  8. ↑ Boyd, David (September 2011). "SN 2011BY - A Type 1A Supernova in NGC 3972 Discovered before maximum.". British Astronomical Association Variable Star Section Circular 149 (149): 10–12. Bibcode: 2011BAAVC.149...10B. 

External links


Coordinates: Sky map 11h 55m 45.117s, +55° 19′ 14.42″




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