| NGC 4564 | |
|---|---|
 Sloan Digital Sky Survey image of NGC 4564. | |
| Observation data (J2000epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 36m 27.0s[1] |
| Declination | 11° 26′ 21″[1] |
| Redshift | 0.003809[1] |
| Heliocentric radial velocity | 1142 km/s[1] |
| Distance | 57.2 Mly (17.55 Mpc)[1] |
| Group orcluster | Virgo Cluster |
| Apparent magnitude (V) | 12.05[1] |
| Characteristics | |
| Type | E6[1] |
| Size | ~59,100 ly (18.12 kpc) (estimated)[1] |
| Apparent size (V) | 3.5 x 1.5[1] |
| Other designations | |
| CGCG 70-186, MCG 2-32-150, PGC 42051, UGC 7773, VCC 1664[1] | |
NGC 4564 is anelliptical galaxy located about 57 millionlight-years away[2] in the constellationVirgo.[3] NGC 4564 was discovered by astronomerWilliam Herschel on March 15, 1784.[4] The galaxy is also a member of theVirgo Cluster.[5][6]
NGC 4564 has an estimated population of 213 ± 31globular clusters.[7] It is the host of asupermassive black hole with an estimated mass of about 56 million suns (0.56+0.03
−0.08×108 M☉).[8]
Onesupernova has been observed in NGC 4564: SN 1961H (type unknown, mag. 11.2) was discovered by Romano on 2 May 1961.[9][10]
