IC 4972
| Galaxy IC 4972 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | peacock |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 17 m 42.7 s |
| declination | -70 ° 54 ′ 54 ″ |
| Appearance | |
| Morphological type | Sb: |
| Brightness (visual) | 14.6 mag |
| Brightness (B-band) | 15.4 mag |
| Angular expansion | 1.20 'x 0.2' |
| Position angle | 15 ° |
| Surface brightness | 12.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.012125 ± 0.000067 |
| Radial velocity | (3523 ± 21) km / s |
|
Stroke distance v rad / H 0 |
(158 ± 11) · 10 6 ly (48.3 ± 3.4) Mpc |
| history | |
| discovery | DeLisle Stewart |
| Discovery date | September 21, 1900 |
| Catalog names | |
| IC 4972 • PGC 64436 • ESO 073-034 • IRAS F20124-7104 • 2MASX J20174272-7054544 • SGC 201228-7104.2 • GALEX ASC J201742.88-705450.9 • LDCE 1386 NED008 | |
IC 4972 is a spiral galaxy of the Hubble type Sbc in the constellation Peacock in the southern sky . It is an estimated 158 million light years away from the Milky Way and has a diameter of about 55,000 ly. a. the galaxies NGC 6872 , NGC 6876 , NGC 6877 , IC 4970 .
The object was discovered by DeLisle Stewart on September 21, 1900 .