NGC 4574
Galaxy NGC 4574 |
|
---|---|
![]() |
|
AladinLite | |
Constellation | centaur |
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.