IC 1788
| Galaxy IC 1788 |
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|---|---|
![IC 1788 [1]](https://de.wikipedia.org/wiki/Datei:IC_1788_DSS.jpg)
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| IC 1788 | |
| AladinLite | |
| Constellation | Chemical furnace |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 15 m 49.96 s |
| declination | -31 ° 12 ′ 03.6 ″ |
| Appearance | |
| Morphological type | SB (s) bc? / HII |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.5 mag |
| Angular expansion | 2.6 ′ × 1.1 ′ |
| Position angle | 27 ° |
| Surface brightness | 12.7 mag / arcmin² |
| Physical data | |
| Affiliation | IC 1788 group LGG 52 |
| Redshift | 0.011746 ± 0.000026 |
| Radial velocity | 3521 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(154 ± 11) · 10 6 ly (47.3 ± 3.3) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | December 25, 1897 |
| Catalog names | |
| IC 1788 • PGC 8649 • ESO 415-015 • MCG -05-06-011 • IRAS 02136-3125 • 2MASX J02154997-3112035 • SGC 021339-3126.0 • HIPASS J0215-31 • LDCE 150 NED003 • NVSS J021550-311204 | |
IC 1788 is a bar-spiral galaxy of the Hubble-type SBbc with extensive star formation areas in the constellation Fornax in the southern sky . It is estimated to be 1154 million light-years from the Milky Way and about 120,000 light-years across. Together with three other galaxies, it forms the IC 1788 group ( LGG 52 ).
The object was discovered by Lewis Swift on December 25, 1897 .
IC 1788 group ( LGG 52 )
| Galaxy | Alternative name | Distance / million ly |
|---|---|---|
| NGC 857 | PGC 8455 | 154 |
| IC 1783 | PGC 8455 | 147 |
| IC 1788 | PGC 8649 | 154 |
| PGC 8568 | ESO 415-010 | 162 |