NGC 3821

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]

ConstellationLeo

Right ascension11^h 42^m 09.1^s[1]

Declination20° 18′ 56″^[1]

Redshift0.019227^[1]

Quick facts Observation data (J2000 epoch), Constellation ...

NGC 3821
SDSS image of NGC 3821.
Observation data (J2000 epoch)
Constellation	Leo
Right ascension	11h 42m 09.1s[1]
Declination	20° 18′ 56″[1]
Redshift	0.019227[1]
Heliocentric radial velocity	5764 km/s[1]
Distance	271 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]

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