NGC 568
| Galaxy NGC 568 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | sculptor |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 27 m 57.0 s |
| declination | -35 ° 43 ′ 04 ″ |
| Appearance | |
| Morphological type | SA0- |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 2.2 ′ × 1.3 ′ |
| Position angle | 140 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.018943 ± 0.000067 |
| Radial velocity | 5679 ± 20 km / s |
|
Stroke distance v rad / H 0 |
(251 ± 18) x 10 6 ly (77.1 ± 5.4) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | November 29, 1837 |
| Catalog names | |
| NGC 568 • IC 1709 • PGC 5468 • ESO 353- G 003 • MCG -06-04-037 • 2MASX J01275699-3543039 • SGC 012541-3558.6 • LDCE 0077 NED020 | |
NGC 568 = IC 1709 is a lenticular galaxy of the Hubble type SA0: in the constellation Sculptor in the southern sky . It is estimated to be 251 million light years away from the Milky Way and has a disk diameter of around 160,000 ly.
The object was discovered on November 29, 1837 by astronomer John Herschel and rediscovered on September 4, 1897 by Lewis A. Swift (IC 1709).