IC 4744
| Galaxy IC 4744 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 18 h 41 m 54.9 s |
| declination | -63 ° 13 ′ 26 ″ |
| Appearance | |
| Morphological type | S / pec / HII |
| Brightness (visual) | 14.5 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 0.6 ′ × 0.3 ′ |
| Position angle | 85 ° |
| Surface brightness | 12.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.038390 ± 0.000070 |
| Radial velocity | 11509 ± 21 km / s |
|
Stroke distance v rad / H 0 |
(510 ± 36) · 10 6 ly (156.4 ± 10.9) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | July 20, 1901 |
| Catalog names | |
| IC 4744 • PGC 62271 • 62272 • ESO 103-050 • IRAS 18371-6316 • 2MASX J18415486-6313257 • | |
IC 4744 is a spiral galaxy with extensive star formation regions of the Hubble type S / P in the constellation Peacock in the southern sky . It is estimated to be 510 million light years away from the Milky Way and has a diameter of about 90,000 ly.
In the same area of the sky are the galaxies IC 4735 , IC 4742 , IC 4749 , IC 4750 .
The object was discovered by DeLisle Stewart on July 20, 1901 .