NGC 5547
| Galaxy NGC 5547 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Little Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 09 m 45.2 s |
| declination | + 78 ° 36 ′ 04 ″ |
| Appearance | |
| Morphological type | S? pec |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 0.6 ′ × 0.4 ′ |
| Position angle | 66 ° |
| Surface brightness | 12.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.039027 +/- 0.000123 |
| Radial velocity | 11700 +/- 37 km / s |
|
Stroke distance v rad / H 0 |
(530 ± 37) · 10 6 ly (162.5 ± 11.4) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | December 20, 1797 |
| Catalog names | |
| NGC 5547 • UGC 9095 • PGC 50543 • CGCG 353-031 • IRAS 14101 + 7850 • GC 3837 • H III 948 • | |
NGC 5547 is a 13.9 likes bright spiral galaxy of Hubble type S / P in the constellation Ursa Minor and about 530 million light-years from the Milky Way center.
It was discovered on December 20, 1797 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, vS, E nearly in meridian".