NGC 4578
| Galaxy NGC 4578 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 12 h 37 m 30.5 s |
| declination | + 09 ° 33 ′ 18 ″ |
| Appearance | |
| Morphological type | SA (r) 0 ^ 0 ^ |
| Brightness (visual) | 11.2 mag |
| Brightness (B-band) | 12.2 mag |
| Angular expansion | 3.1 'x 2.3' |
| Position angle | 35 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 285 |
| Redshift | 0.007645 ± 0.000017 |
| Radial velocity | 2292 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(100 ± 7) x 10 6 ly (30.6 ± 2.1) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | January 18, 1784 |
| Catalog names | |
| NGC 4578 • UGC 7793 • PGC 42149 • CGCG 070-195 • MCG + 02-32-159 • IRAS 12352 + 0538 • 2MASX J12373054 + 0933184 • VCC 1720 • GC 3118/3119 • H II 15 • h 1365/1366 • Holm 429A • LDCE 0904 NED204 | |
NGC 4578 is a lenticular galaxy with an active nucleus of the Hubble type S0 in the constellation Virgo north of the ecliptic . It is estimated to be 100 million light years from the Milky Way . It is listed as a member of the Virgo galaxy cluster under catalog number VCC 1720 .
The object was discovered on January 18, 1784 by the astronomer Wilhelm Herschel using his 18.7 inch mirror telescope.