NGC 5791
| Galaxy NGC 5791 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Libra |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 14 h 58 m 46.2 s |
| declination | -19 ° 16 ′ 01 ″ |
| Appearance | |
| Morphological type | E6 |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.7 mag |
| Angular expansion | 2.5 ′ × 1.3 ′ |
| Position angle | 163 ° |
| Surface brightness | 13.0 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 389 |
| Redshift | 0.011174 ± 0.000037 |
| Radial velocity | (3350 ± 11) km / s |
|
Stroke distance v rad / H 0 |
(147 ± 10) · 10 6 ly (45.1 ± 3.2) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 19, 1787 |
| Catalog names | |
| NGC 5791 • PGC 53516 • ESO 581-07 • MCG -03-38-35 • SGC 145556-1904.1 • GC 4012 • H III 691 • h 1889 • LDCE 1095 NED002 | |
NGC 5791 is a 11.7 likes bright elliptical galaxy from the Hubble type E6 in the constellation Libra on the ecliptic and about 147 million light-years from the Milky Way center.
It was discovered on May 19, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "cF, smbM, stellar".