NGC 5912
| Galaxy NGC 5912 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Little Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 11 m 40.9 s |
| declination | + 75 ° 23 ′ 05 ″ |
| Appearance | |
| Morphological type | E-S0 |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1.2 ′ × 1.1 ′ |
| Position angle | 129 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.024127 ± 0.000077 |
| Radial velocity | (7233 ± 23) km / s |
|
Stroke distance v rad / H 0 |
(331 ± 23) · 10 6 ly (101.4 ± 7.1) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | December 12, 1797 |
| Catalog names | |
| NGC 5912 • PGC 54237 • CGCG 354-022 • MCG + 13-11-11 • GC 4091 • H III 944 • LDCE 1105 NED004 | |
NGC 5912 is a 13.8 mag bright lenticular galaxy of the Hubble type E-S0 in the constellation Little Bear and about 331 million light years from the Milky Way.
Together with NGC 5909, it forms a gravitationally bound double galaxy and was discovered together with it on December 12, 1797 by Wilhelm Herschel with an 18.7-inch reflecting telescope, who called it “Two nebulae. Both vF, vS, resolvable, distance 1.5 ′ in parallel ”.