NGC 7204
| Galaxy NGC 7204 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Southern fish |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 06 m 54.2 s |
| declination | -31 ° 03 ′ 05 ″ |
| Appearance | |
| Morphological type | S0 / a |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.60 ′ × 0.8 ′ |
| Position angle | 91 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.008639 |
| Radial velocity | 2590 km / s |
|
Stroke distance v rad / H 0 |
(117 ± 8) x 10 6 ly (36.0 ± 2.5) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | September 27, 1834 |
| Catalog names | |
| NGC 7204 • PGC 68061 • ESO 467-008 • IRAS 22040-3117 • 2MASX J22065525-3103113 • VV 685 • AM 2204-311 | |
NGC 7204 is a lenticular galaxy of the Hubble type S0 / a in the constellation Piscis Austrinus in the southern sky . It is estimated to be 117 million light years from the Milky Way and about 55,000 light years in diameter. Together with PGC 68054 ( NGC 7204A ) and LEDA 2801173 ( NGC 7204B ) it forms a closely interacting galaxy trio .
In the same area of the sky are u. a. the galaxies NGC 7201 and NGC 7203 .
The object was discovered by John Herschel on September 27, 1834 .