NGC 2256
| Galaxy NGC 2256 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | giraffe |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 06 h 47 m 14.0 s |
| declination | + 74 ° 14 ′ 12 ″ |
| Appearance | |
| Morphological type | SAB0-? |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 2.3 ′ × 2 ′ |
| Position angle | 72 ° |
| Surface brightness | 14.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.017519 ± 0.000193 |
| Radial velocity | 5252 ± 58 km / s |
|
Stroke distance v rad / H 0 |
(240 ± 17) x 10 6 ly (73.7 ± 5.2) Mpc |
| history | |
| discovery | Wilhelm Temple |
| Discovery date | August 1, 1883 |
| Catalog names | |
| NGC 2256 • UGC 3519 • PGC 19602 • CGCG 330-014 • MCG + 12-07-015 • 2MASX J06471396 + 7414114 • GALEX ASC J064714.16 + 741408.1 • LDCE 459 NED008 | |
NGC 2256 is a lenticular galaxy of the Hubble type E / SB0 in the constellation Giraffe in the northern sky . It is estimated to be 240 million light years away from the Milky Way and has a diameter of around 125,000 ly.
In the same area of the sky is the galaxy NGC 2258 .
The object was discovered on August 1, 1883 by Ernst Wilhelm Leberecht Tempel .