NGC 1155
| Galaxy NGC 1155 |
|
|---|---|
|
|
| HOLM 64 | |
| AladinLite | |
| Constellation | Eridanus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 58 m 13.1 s |
| declination | -10 ° 21 ′ 02 ″ |
| Appearance | |
| Morphological type | S0 / Sbrst |
| Brightness (visual) | 13.4 mag |
| Brightness (B-band) | 14.4 mag |
| Angular expansion | 1 ′ × 0.8 ′ |
| Position angle | 165 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.015491 ± 0.000017 |
| Radial velocity | 4644 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(206 ± 14) · 10 6 ly (63.2 ± 4.4) Mpc |
| history | |
| discovery | Edouard J.-M. Stephan |
| Discovery date | December 15, 1876 |
| Catalog names | |
| NGC 1155 • PGC 11233 • MCG -02-08-035 • IRAS 02557-1033 • 2MASX J02581308-1021019 • GALEX ASC J025813.09-102101.7 • HOLM 064B • LDCE 213 NED003 | |
NGC 1155 is a lenticular galaxy with a high rate of star formation of the Hubble type S0 in the constellation Eridanus in the southern sky . It is estimated to be 206 million light-years away from the Milky Way and has a diameter of around 60,000 ly. Together with NGC 1154 , it forms the gravitationally bound galaxy pair Holm 64 .
The object was discovered on December 15, 1876 by the astronomer Édouard Stephan .