IC 4620
| Galaxy IC 4620 |
|
|---|---|
![IC 4620 [1]](https://de.wikipedia.org/wiki/Datei:IC4620_-_SDSS_DR14.jpg)
|
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| IC 4620 | |
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 16 h 48 m 30.040 s |
| declination | + 19 ° 18 ′ 19.40 ″ |
| Appearance | |
| Morphological type | SB (rs) b |
| Brightness (visual) | 14.8 mag |
| Brightness (B-band) | 15.6 mag |
| Angular expansion | 0.50 '× 0.3' |
| Position angle | 100 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.034664 ± 0.000179 |
| Radial velocity | 10,392 ± 54 km / s |
|
Stroke distance v rad / H 0 |
(470 ± 33) x 10 6 ly (144.1 ± 10.1) Mpc |
| history | |
| discovery | Royal H. Frost |
| Discovery date | July 17, 1903 |
| Catalog names | |
| IC 4620 • PGC 59034 • CGCG 110-010 • MCG + 03-43-004 • 2MASX J16483000 + 1918193 • GALEX ASC J164830.14 + 191819.3 • WISEA J164830.10 + 191819.2 | |
IC 4620 is a bar-spiral galaxy of the Hubble type SBb in the constellation Hercules in the northern sky . It is estimated to be 470 million light years from the Milky Way and about 70,000 light years in diameter.
The object was discovered by Royal Harwood Frost on July 17, 1903 .