NGC 7457
| Galaxy NGC 7457 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Pegasus |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 23 h 00 m 59.9 s |
| declination | + 30 ° 08 ′ 42 ″ |
| Appearance | |
| Morphological type | SA (rs) 0-? |
| Brightness (visual) | 11.0 mag |
| Brightness (B-band) | 12.0 mag |
| Angular expansion | 4.3 ′ × 2.3 ′ |
| Position angle | 130 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.002815 ± 0.000017 |
| Radial velocity | 844 ± 5 km / s |
|
Stroke distance v rad / H 0 |
(47 ± 3) x 10 6 ly (14.3 ± 1.0) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | September 12, 1784 |
| Catalog names | |
| NGC 7457 • UGC 12306 • PGC 70258 • CGCG 496-032 • MCG + 05-54-26 • 2MASX J23005993 + 3008416 • GC 4883 • H II 212 • h 2201 • | |
NGC 7457 is a type E-S0 galaxy and lies in the constellation Pegasus . It is an estimated 47 million light years from the Milky Way .
The object was discovered by William Herschel on September 12, 1784 .