NGC 357
| Galaxy NGC 357 |
|
|---|---|
![NGC 357 [1] SDSS image](https://de.wikipedia.org/wiki/Datei:NGC357_-_SDSS_DR14.jpg)
|
|
| NGC 357 SDSS image | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 01 h 03 m 21.88 s |
| declination | -06 ° 20 ′ 21.2 ″ |
| Appearance | |
| Morphological type | SB (r) 0 / a: |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.1 mag |
| Angular expansion | 2.5 ′ × 1.7 ′ |
| Position angle | 33 ° |
| Surface brightness | 13.6 mag / arcmin² |
| Physical data | |
| Redshift | 0.008026 ± 0.000053 |
| Radial velocity | 2406 ± 16 km / s |
|
Stroke distance v rad / H 0 |
(110 ± 8) x 10 6 ly (33.7 ± 2.4) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | September 10, 1785 |
| Catalog names | |
| NGC 357 • PGC 3768 • MCG -01-03-081 • 2MASX J01032187-0620213 • GC 190 • H II 434 • h 82 • GALEX ASC J010321.95-062023.5 • 2MASS J01032188-0620210 • WISEA J010321.88-062020.9 | |
NGC 357 is a lenticular galaxy of the Hubble type SB0 / a in the constellation Whale south of the ecliptic . It is estimated to be 110 million light-years from the Milky Way and about 80,000 light-years across.
In the same area of the sky are u. a. the galaxies NGC 347 , NGC 349 , NGC 350 , NGC 355 .
The object was discovered on September 10, 1785 by the German-British astronomer Friedrich Wilhelm Herschel .