NGC 4100

NGC 4100 is a spiral galaxy in the northern constellation of Ursa Major. It was discovered by William Herschel on Mar 9, 1788.^[5] This galaxy is a member of the NGC 3992 group in the Ursa Major Cluster.^[4]

NGC 4100
Hubble Space Telescope image of NGC 4100
Observation data (J2000 epoch)
Constellation	Ursa Major
Right ascension	12h 06m 08.602s[1]
Declination	+49° 34′ 56.32″[1]
Redshift	0.003582[2]
Heliocentric radial velocity	1,072 ± 6 km/s[2]
Distance	65.1 Mly (20.0 Mpc)[3]
Group or cluster	NGC 3992 group[4]
Apparent magnitude (B)	11.7[2]
Characteristics
Type	SAbc[2]
Mass	33.3+10.7 −12.7×109[3] M☉
Other designations
NGC 4100, UGC 7095, MCG +08-22-068, PGC 38370[2]