NGC 3930
| Galaxy NGC 3930 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Big Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 51 m 46.0 s |
| declination | + 38 ° 00 ′ 54 ″ |
| Appearance | |
| Morphological type | SAB (s) c |
| Brightness (visual) | 12.5 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 3 ′ × 2.3 ′ |
| Position angle | 30 ° |
| Surface brightness | 14.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.003065 +/- 0.000005 |
| Radial velocity | 919 +/- 1 km / s |
|
Stroke distance v rad / H 0 |
(42 ± 3) x 10 6 ly (12.8 ± 0.9) Mpc |
| diameter | 35,000 ly |
| history | |
| discovery | William Herschel |
| Discovery date | March 17, 1787 |
| Catalog names | |
| NGC 3930 • UGC 6833 • PGC 37132 • CGCG 186-059 • MCG + 06-26-045 • KUG 1149 + 382 • 2MASX J11514602 + 3800544 • GC 2591 • H III 616 • h 1000 • USGC U431 NED03 | |
NGC 3930 is a barred spiral galaxy of the Hubble type SBc in the constellation Great Bear in the northern sky . It is estimated to be 42 million light years from the Milky Way and about 35,000 ly in diameter.
The object was discovered on March 17, 1787 by the astronomer William Herschel with his 18.7-inch reflector telescope.
Web links
Commons : NGC 3930 - collection of images, videos, and audio files
