NGC 3794
| Galaxy NGC 3794 |
|
|---|---|
|
|
| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 40 m 54.4 s |
| declination | + 56 ° 12 ′ 07 ″ |
| Appearance | |
| Morphological type | SAB (s) d |
| Brightness (visual) | 12.9 mag |
| Brightness (B-band) | 13.6 mag |
| Angular expansion | 2.2 ′ × 1.5 ′ |
| Position angle | 120 ° |
| Surface brightness | 14.0 mag / arcmin² |
| Physical data | |
| Affiliation | UMa group NGC 3898 group LGG 250 |
| Redshift | 0.004620 ± 0.000002 |
| Radial velocity | 1385 ± 1 km / s |
|
Stroke distance v rad / H 0 |
(65 ± 5) x 10 6 ly (20.0 ± 1.4) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | April 14, 1789 |
| Catalog names | |
| NGC 3794 • 3804 • UGC 6640 • PGC 36238 • CGCG 268-070 • 292-019 • MCG + 09-19-153 • IRAS 11381 + 5628 • 2MASX J11405341 + 5612073 • GC 2483/2494 • H III 773 / II 830 • NSA 140050 | |
NGC 3794 = NGC 3804 is a faint barred spiral galaxy of the Hubble type SBc in the constellation Great Bear in the northern sky . It is estimated to be 65 million light years from the Milky Way and about 30,000 light years across.
In the same area of the sky is u. a. the galaxy NGC 3780 .
The object was discovered on April 14, 1789 by the astronomer Wilhelm Herschel with an 18.7-inch telescope .