NGC 5712
| Galaxy NGC 5712 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Little Bear |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 29 m 41.7 s |
| declination | + 78 ° 51 ′ 51 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 14.5 mag |
| Brightness (B-band) | 15.5 mag |
| Angular expansion | 0.7 ′ × 0.7 ′ |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.022656 +/- 0.000093 |
| Radial velocity | 6792 +/- 28 km / s |
|
Stroke distance v rad / H 0 |
(311 ± 22) x 10 6 ly (95.3 ± 6.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | December 20, 1797 |
| Catalog names | |
| NGC 5712 • PGC 51799 • CGCG 353-042, 354-005 • MCG + 13-10-21 • GC 3963 • H III 950 • LDCE 1070 NED002 | |
NGC 5712 is a 14.5 mag bright elliptical galaxy of the Hubble type E-S0 in the constellation Little Bear and about 311 million light years from the Milky Way.
It was discovered on December 20, 1797 by Wilhelm Herschel with an 18.7-inch reflecting telescope, who marked it as “vF, S, resolvable. It is preceded by a small patch of stars which appears almost like this nebula, but more resolved ”.