Astronomy:NGC 3821

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Short description: Spiral galaxy in the constellation Leo
NGC 3821
SDSS NGC 3821.jpg
SDSS image of NGC 3821.
Observation data (J2000 epoch)
ConstellationLeo
Right ascension 11h 42m 09.1s[1]
Declination20° 18′ 56″[1]
Redshift0.019227[1]
Helio radial velocity5764 km/s[1]
Distance271 Mly (83.1 Mpc)[1]
Group or clusterLeo Cluster
Apparent magnitude (V)13.7[1]
Characteristics
Type(R)SAB(s)ab[1]
Size~123,000 ly (37.7 kpc) (estimated)[1]
Apparent size (V)1.4 x 1.3[1]
Other designations
CGCG 127-32, MCG 4-28-30, PGC 36314, UGC 6663[1]

NGC 3821 is a low surface brightness[2] spiral galaxy[3] and a ring galaxy[4] about 270 million light-years away[3] in the constellation Leo.[5] The galaxy was discovered by astronomer William Herschel on April 26, 1785[6] and is a member of the Leo Cluster.[7]

See also

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 "NASA/IPAC Extragalactic Database". Results for NGC 3821. http://nedwww.ipac.caltech.edu/. 
  2. Honey, M; van Driel, W; Das, M; Martin, J-M (2018-03-03). "A study of the H i and optical properties of Low Surface Brightness galaxies: spirals, dwarfs, and irregulars" (in en). Monthly Notices of the Royal Astronomical Society 476 (4): 4488–4500. doi:10.1093/mnras/sty530. ISSN 0035-8711. Bibcode2018MNRAS.476.4488H. 
  3. 3.0 3.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+3821&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. 
  4. P., Kostyuk, I.; I., Kopylov, A. (June 1982). "Radial Velocities of Ring-Shaped Galaxies - Part Two" (in en). Soviet Astronomy Letters 8: 280. Bibcode1982SvAL....8..280K. 
  5. "Revised NGC Data for NGC 3821". http://spider.seds.org/ngc/revngcic.cgi?NGC3821. 
  6. "New General Catalog Objects: NGC 3800 - 3849" (in en-US). https://cseligman.com/text/atlas/ngc38.htm#3821. 
  7. Deharveng, J.-M.; Boselli, A.; Donas, J. (October 2002). "The far-ultraviolet emission of early-type galaxies" (in en). Astronomy & Astrophysics 393 (3): 843–854. doi:10.1051/0004-6361:20021082. ISSN 0004-6361. Bibcode2002A&A...393..843D. http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:astro-ph/0208578. 

External links