NGC 4574
| Galaxy NGC 4574 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | centaur |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 37 m 43.51 s |
| declination | -35 ° 31 ′ 03.5 ″ |
| Appearance | |
| Morphological type | SAB (s) c / HII |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 1.8 ′ × 1.1 ′ |
| Position angle | 113 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Affiliation | IC 3639 group LGG 297 |
| Redshift | 0.009857 ± 0.000017 |
| Radial velocity | 2955 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(124 ± 9) · 10 6 ly (38.1 ± 2.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | April 20, 1835 |
| Catalog names | |
| NGC 4574 • PGC 42166 • ESO 380-G049 • MCG -06-28-07 • IRAS 12350-3514 • 2MASX J12374350-3531037 • GC 3115 • h 3402 • GALEX ASC J123743.55-353101.1 • HIPASS J1237-35 | |
NGC 4574 is a bar-spiral galaxy with extensive star formation regions of the Hubble type SBc in the constellation Centaur in the southern sky . It is estimated to be 124 million light years from the Milky Way and about 70,000 light years in diameter. Presumably it forms a gravitationally bound galaxy pair together with PGC 42229 . Together with three other galaxies, it forms the IC 3639 group ( LGG 297 ).
The object was discovered on April 20, 1835 by John Herschel with an 18-inch reflector telescope.