NGC 794
| Galaxy NGC 794 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Aries |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 02 m 29.3 s |
| declination | 18 ° 22 ′ 23 ″ |
| Appearance | |
| Morphological type | S0-: |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.3 ′ × 1.1 ′ |
| Position angle | 45 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.027436 ± 0.000080 |
| Radial velocity | 8225 ± 24 km / s |
|
Stroke distance v rad / H 0 |
(371 ± 26) x 10 6 ly (113.9 ± 8.0) Mpc |
| diameter | 190,000 ly |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | October 15, 1784 |
| Catalog names | |
| NGC 794 • IC 191 • PGC 7763 • MCG + 03-06-024 • 2MASX J02022931 + 1822226 • GC 478 • H III 207 • h 188 • | |
NGC 794 = IC 191 is a lenticular galaxy of the Hubble type E / S0 in the constellation Aries on the ecliptic . It is about 371 million light years away from the Milky Way and is about 190,000 light years in diameter .
The object was discovered on October 15, 1784 by William Herschel .