NGC 7228
| Galaxy NGC 7228 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | lizard |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 11 m 48.60 s |
| declination | + 38 ° 41 ′ 57.0 ″ |
| Appearance | |
| Morphological type | (R ') SB (s) a |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.7 mag |
| Angular expansion | 2.1 '× 1.2' |
| Position angle | 156 ° |
| Surface brightness | 14.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.021858 ± 0.000033 |
| Radial velocity | 6553 ± 10 km / s |
|
Stroke distance v rad / H 0 |
(303 ± 21) x 10 6 ly (92.8 ± 6.5) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | September 1, 1872 |
| Catalog names | |
| NGC 7228 • UGC 11945 • PGC 68254 • CGCG 513-013 • MCG + 06-48-016 • 2MASX J22114860 + 3841569 • GALEX ASC J221148.38 + 384159.5 • LDCE 1520 NED006 • WISEA J221148.59 + 384157.0 | |
NGC 7228 is a barred spiral galaxy of the Hubble type SB / a in the constellation Lizard in the northern sky . It is an estimated 303 million light years from the Milky Way and about 185,000 light years across. Presumably it forms a gravitationally bound galaxy pair together with NGC 7227 .
In the same area of the sky is u. a. the galaxy IC 5180 .
The object was discovered by Édouard Stephan on September 1, 1872 .