IC 4650
| Galaxy IC 4650 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Dragon |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 17 h 15 m 47.4 s |
| declination | + 57 ° 18 ′ 07 ″ |
| Appearance | |
| Morphological type | S. |
| Brightness (visual) | 14.8 mag |
| Brightness (B-band) | 15.7 mag |
| Angular expansion | 0.7 ′ × 0.3 ′ |
| Position angle | 66 ° |
| Physical data | |
| Redshift | 0.026699 ± 0.000077 |
| Radial velocity | 8004 ± 23 km / s |
|
Stroke distance v rad / H 0 |
(366 ± 26) · 10 6 ly (112.3 ± 7.9) Mpc |
| history | |
| discovery | Guillaume Bigourdan |
| Discovery date | September 5, 1888 |
| Catalog names | |
| IC 4650 • PGC 2562439 • 2MASX J17154740 + 5718066 • GALEX ASC J171547.59 + 571807.5 • 2MASS J17154740 + 5718067 • WISEA J171547.40 + 571806.7 • NSA 4434 | |
IC 4650 is a spiral galaxy of the Hubble type S in the constellation Dragon in the northern sky . It is about 366 million light years away from the Milky Way and has a diameter of about 65,000 light years .
In the same area of the sky are u. a. the galaxies NGC 6338 , NGC 6345 , NGC 6346 , IC 1252 .
The object was discovered by Guillaume Bigourdan on September 5, 1888 , but the observed object could also be a star (RA 17 15 52.0, Dec +57 18 53).