NGC 1103
| Galaxy NGC 1103 |
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|---|---|
![NGC 1103 & IC 1853 [1]](https://de.wikipedia.org/wiki/Datei:NGC_1103_DSS.jpg)
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| NGC 1103 & IC 1853 | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 48 m 06.00 s |
| declination | -13 ° 57 ′ 33.2 ″ |
| Appearance | |
| Morphological type | SB (s) b: |
| Brightness (visual) | 12.9 mag |
| Brightness (B-band) | 13.7 mag |
| Angular expansion | 2.2 ′ × 0.6 ′ |
| Position angle | 45 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 1103 group LGG 76 |
| Redshift | 0.013803 ± 0.000030 |
| Radial velocity | 4138 ± 9 km / s |
|
Stroke distance v rad / H 0 |
(183 ± 13) · 10 6 ly (56.2 ± 3.9) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | December 26, 1885 |
| Catalog names | |
| NGC 1103 • PGC 10597 • MCG -02-08-005 • IRAS 02457-1410 • 2MASX J02480598-1357332 • NVSS J024806-135732 • LDCE 177 NED021 • WISEA J024806.03-135733.1 | |
NGC 1103 is a bar-spiral galaxy of the Hubble type SBb in the constellation Eridanus in the southern sky . It is estimated to be 183 million light years from the Milky Way and about 120,000 light years in diameter. Together with IC 1853 it probably forms a gravitationally bound galaxy pair. She is the brightest member of the NGC 1103 group ( LGG 76 ).
In the same area of the sky there is still u. a. the galaxy NGC 1120 .
The object was discovered on December 26, 1885 by the astronomer Lewis Swift .
NGC 1103 ( LGG 76 )
| Galaxy | Alternative name | Distance / million ly |
|---|---|---|
| NGC 1103 | PGC 10597 | 183 |
| NGC 1081 | PGC 10411 | 177 |
| IC 1853 | PGC 10595 | 183 |
| PGC 10879 | MCG-03-08-037 | 179 |