IC 4623
| Galaxy IC 4623 |
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|---|---|
![IC 4623 with LEDA 1671975 (lo) & LEDA 1671938 (o) [1]](https://de.wikipedia.org/wiki/Datei:IC4623_-_SDSS_DR14.jpg)
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| IC 4623 with LEDA 1671975 (lo) & LEDA 1671938 (o) | |
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 16 h 51 m 05.340 s |
| declination | + 22 ° 31 ′ 38.70 ″ |
| Appearance | |
| Morphological type | Sc |
| Brightness (visual) | 14.7 mag |
| Brightness (B-band) | 15.4 mag |
| Angular expansion | 0.70 'x 0.2' |
| Position angle | 120 ° |
| Surface brightness | 12.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.031711 ± 0.000110 |
| Radial velocity | 9507 ± 33 km / s |
|
Stroke distance v rad / H 0 |
(431 ± 30) x 10 6 ly (132.1 ± 9.3) Mpc |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | July 27, 1903 |
| Catalog names | |
| IC 4623 • PGC 59115 • CGCG 139-008 N02 • MCG + 04-40-003 • 2MASX J16510537 + 2231394 • GALEX ASC J165105.42 + 223139.1 • NVSS J165105 + 223140 | |
IC 4623 is a spiral radio galaxy of the Hubble type Sc in the constellation Hercules in the northern sky . It is an estimated 431 million light years from the Milky Way and about 90,000 light years in diameter.
In the same area of the sky are u. a. the galaxies NGC 6243 .
The object was discovered by Stéphane Javelle on July 27, 1903 .