NGC 5909
| Galaxy NGC 5909 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Little Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 11 m 28.0 s |
| declination | + 75 ° 23 ′ 02 ″ |
| Appearance | |
| Morphological type | Sbc |
| Brightness (visual) | 14.0 mag |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1.1 ′ × 0.5 ′ |
| Position angle | 52 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.023523 ± 0.000264 |
| Radial velocity | (7052 ± 79) km / s |
|
Stroke distance v rad / H 0 |
(323 ± 23) x 10 6 ly (98.9 ± 7.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | December 12, 1797 |
| Catalog names | |
| NGC 5909 • UGC 9778 • PGC 54223 • CGCG 354-021 • MCG + 13-11-10 • GC 4089 • H III 943 • LDCE 1105 NED003 | |
NGC 5909 is a 14.0 mag bright spiral galaxy of the Hubble type Sbc in the constellation Little Bear and about 323 million light years from the Milky Way.
Together with NGC 5912, 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 ”.