IC 1756
| Galaxy IC 1756 |
|
|---|---|
![IC 1756 with IC 1757 (l) [1]](https://de.wikipedia.org/wiki/Datei:IC1756_-_SDSS_DR14.jpg)
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| IC 1756 with IC 1757 (l) | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 57 m 05.3 s |
| declination | -00 ° 28 ′ 06 ″ |
| Appearance | |
| Morphological type | Sd (f) / HII |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 1.40 'x 0.2' |
| Position angle | 155 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.022175 ± 0.000123 |
| Radial velocity | 6648 ± 37 km / s |
|
Stroke distance v rad / H 0 |
(299 ± 21) · 10 6 ly (91.6 ± 6.4) Mpc |
| history | |
| discovery | Edward E. Barnard |
| Catalog names | |
| IC 1756 • UGC 1429 • PGC 7328 • CGCG 387-008 • MCG + 00-06-005 • IRAS 01545-0042 • 2MASX J01570524-0028053 • NVSS J015705-002810 | |
IC 1756 is a spiral galaxy with extensive star formation areas of the Hubble type Sc in the constellation Whale south of the ecliptic . It is an estimated 299 million light years from the Milky Way and about 125,000 light years in diameter.
In the same area of the sky are u. a. the galaxies IC 177 and IC 1757 .
The object was discovered by Edward Emerson Barnard .