NGC 3821

NGC 3821
NGC 3821
	SDSS image of NGC 3821.
Observation data (J2000 epoch)
Constellation	Leo
Right ascension	11h 42m 09.1s
Declination	20° 18′ 56″
Redshift	0.019227
Heliocentric radial velocity	5764 km/s
Distance	271 Mly (83.1 Mpc)
Group or cluster	Leo Cluster
Apparent magnitude (V)	13.7
Characteristics
Type	(R)SAB(s)ab
Size	~123,000 ly (37.7 kpc) (estimated)
Apparent size (V)	1.4 x 1.3
Other designations
	CGCG 127-32, MCG 4-28-30, PGC 36314, UGC 6663

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]

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "NASA/IPAC Extragalactic Database". Results for NGC 3821. Retrieved 2018-07-09.
^ 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.
^ ^a ^b "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-07-09.
^ 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)
^ "Revised NGC Data for NGC 3821". spider.seds.org. Retrieved 2018-07-09.
^ "New General Catalog Objects: NGC 3800 - 3849". cseligman.com. Retrieved 2018-07-09.
^ 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.