IC 4944
| Galaxy IC 4944 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | telescope |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 07 m 08.8 s |
| declination | -54 ° 26 ′ 49 ″ |
| Appearance | |
| Morphological type | SA (rs) 0+: |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.00 'x 0.4' |
| Position angle | 6 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation | SSRS group 15 |
| Redshift | 0.019157 ± 0.000077 |
| Radial velocity | 5743 ± 23 km / s |
|
Stroke distance v rad / H 0 |
(254 ± 18) x 10 6 ly (78.0 ± 5.5) Mpc |
| history | |
| discovery | Royal H. Frost |
| Discovery date | August 31, 1904 |
| Catalog names | |
| IC 4944 • PGC 64129 • ESO 185-067 • IRAS 20032-5435 • 2MASX J20070886-5426487 • SGC 200315-5435.5 • GALEX ASC J200708.77-542650.0 | |
IC 4944 is a lens-shaped galaxy of the Hubble type S0 / a in the constellation Telescopium in the southern sky . It is an estimated 254 million light years from the Milky Way and about 70,000 light years across.
In the same area of the sky there are still u. a. the galaxies NGC 6850 , NGC 6854 , NGC 6867 , IC 4941 .
The object was discovered by Royal Harwood Frost on August 31, 1904 .