NGC 4564

NGC 4564 is an elliptical galaxy located about 57 million light-years away^[2] in the constellation Virgo.^[3] NGC 4564 was discovered by astronomer William Herschel on March 15, 1784.^[4][5] The galaxy is also a member of the Virgo Cluster.^[6][7]

NGC 4564
NGC 4564 imaged by Sloan Digital Sky Survey
Observation data (J2000 epoch)
Constellation	Virgo
Right ascension	12h 36m 26.9913s[1]
Declination	+11° 26′ 21.266″[1]
Redshift	0.003809[1]
Heliocentric radial velocity	1142 km/s[1]
Distance	57.2 Mly (17.55 Mpc)[1]
Group or cluster	Virgo Cluster
Apparent magnitude (V)	12.05[1]
Characteristics
Type	E6[1]
Size	~63,200 ly (19.38 kpc) (estimated)[1]
Apparent size (V)	3.5′ × 1.5′[1]
Other designations
VCC 1664, UGC 7773, MCG +02-32-150, PGC 42051, CGCG 070-186[1]

NGC 4564 has an estimated population of 213 ± 31 globular clusters.^[8] It is the host of a supermassive black hole with an estimated mass of about 56 million suns (0.56+0.03
−0.08×10⁸ M_☉).^[9]

Supernova

One supernova has been observed in NGC 4564: SN 1961H (type unknown, mag. 11.2) was discovered by Italian amateur astronomer Giuliano Romano on 2 May 1961.^[10][11] A spectrum taken indicated that it was probably of Type I.^[10]

See also

• NGC 3115
• NGC 5102
• List of NGC objects (4001–5000)