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NGC 3821
SDSS image of NGC 3821.
Observation data ( J2000 epoch)
Constellation Leo
Right ascension11h 42m 09.1s [1]
Declination20° 18′ 56″ [1]
Redshift0.019227 [1]
Heliocentric radial velocity5764 km/s [1]
Distance271  Mly (83.1  Mpc) [1]
Group or cluster Leo 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. ^ a b c d e f g h i j "NASA/IPAC Extragalactic Database". Results for NGC 3821. Retrieved 2018-07-09.
  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". Monthly Notices of the Royal Astronomical Society. 476 (4): 4488–4500. arXiv: 1802.06408. Bibcode: 2018MNRAS.476.4488H. doi: 10.1093/mnras/sty530. ISSN  0035-8711. S2CID  118843004.
  3. ^ a b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-07-09.
  4. ^ P., Kostyuk, I.; I., Kopylov, A. (June 1982). "Radial Velocities of Ring-Shaped Galaxies - Part Two". Soviet Astronomy Letters. 8: 280. Bibcode: 1982SvAL....8..280K.{{ cite journal}}: CS1 maint: multiple names: authors list ( link)
  5. ^ "Revised NGC Data for NGC 3821". spider.seds.org. Retrieved 2018-07-09.
  6. ^ "New General Catalog Objects: NGC 3800 - 3849". cseligman.com. Retrieved 2018-07-09.
  7. ^ Deharveng, J.-M.; Boselli, A.; Donas, J. (October 2002). "The far-ultraviolet emission of early-type galaxies". Astronomy & Astrophysics. 393 (3): 843–854. arXiv: astro-ph/0208578. Bibcode: 2002A&A...393..843D. doi: 10.1051/0004-6361:20021082. ISSN  0004-6361. S2CID  16016383.

External links