NGC 578
| Galaxy NGC 578 |
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|---|---|
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|
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 30 m 29.1 s |
| declination | -22 ° 40 ′ 00 ″ |
| Appearance | |
| Morphological type | SAB (rs) c |
| Brightness (visual) | 10.8 mag |
| Brightness (B-band) | 11.5 likes |
| Angular expansion | 4.8 ′ × 3.0 ′ |
| Position angle | 110 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.005430 ± 0.000010 |
| Radial velocity | 1628 ± 3 km / s |
|
Stroke distance v rad / H 0 |
(72 ± 5) x 10 6 ly (22.1 ± 1.5) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | November 11, 1835 |
| Catalog names | |
| NGC 578 • UGCA 18 • PGC 5619 • ESO 476-015 • MCG -04-04-020 • IRAS 01280-2255 • KUG 0128-229B • 2MASX J01302854-2240019 • SGC 012805-2255.4 • GC 339 • h 2418 • AM 0128 -225 • HIPASS J0130-22 | |
NGC 578 is a barred spiral galaxy of the Hubble type SBc in the constellation Whale south of the celestial equator . It is estimated 72 million light years away from the Milky Way and has a diameter of about 100,000 ly.
In the same area of the sky are the galaxies NGC 554 , NGC 555 , NGC 556 , among others .
The object was discovered by John Herschel on November 11, 1835 .