NGC 4689
Galaxy NGC 4689 |
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SDSS | |
AladinLite | |
Constellation | Berenike's hair |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 12 h 47 m 45.5 s |
declination | + 13 ° 45 ′ 46 ″ |
Appearance | |
Morphological type | SA (rs) bc / Sy / LINER |
Brightness (visual) | 10.7 mag |
Brightness (B-band) | 11.5 likes |
Angular expansion | 4.3 ′ × 3.5 ′ |
Position angle | 160 ° |
Surface brightness | 13.5 mag / arcmin² |
Physical data | |
Affiliation | Virgo Cluster Messier 87 Group NGC 4639 Group NGC 4486 Group LGG 289 |
Redshift | 0.005390 ± 0.000017 |
Radial velocity | 1616 ± 5 km / s |
Stroke distance v rad / H 0 |
(70 ± 5) · 10 6 ly (21.6 ± 1.5) Mpc |
diameter | 70,000 ly |
history | |
discovery | William Herschel |
Discovery date | April 12, 1784 |
Catalog names | |
NGC 4689 • UGC 7965 • PGC 43186 • CGCG 071-043 • MCG + 02-33-022 • IRAS 12452 + 1402 • 2MASX J12474552 + 1345456 • VCC 2058 • GC 3219 • H II 128 • h 1431 • HIPASS J1247 + 13 • LDCE 904 NED248 • EVCC 1166 |
NGC 4689 is a spiral galaxy with an active nucleus of the Hubble type Sbc in the constellation Coma Berenices in the northern sky . It is estimated to be 70 million light years away from the Milky Way and about 95,000 light years in diameter. It is listed as a member of the Virgo Galaxy Cluster under catalog number VCC 2058 .
In the same area of the sky are u. a. the galaxies NGC 4659 , NGC 4752 , IC 3735 , IC 3742 .
The object was discovered by Wilhelm Herschel on April 12, 1784 .
High-resolution image of the center using the Hubble space telescope