NGC 7391
| Galaxy NGC 7391 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Aquarius |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 22 h 50 m 36.1 s |
| declination | -01 ° 32 ′ 41 ″ |
| Appearance | |
| Morphological type | E: |
| Brightness (visual) | 12.2 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 1.7 'x 1.5' |
| Position angle | 70 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.010167 ± 0.000030 |
| Radial velocity | 3048 ± 9 km / s |
|
Stroke distance v rad / H 0 |
(142 ± 10) · 10 6 ly (43.6 ± 3.1) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | October 1, 1785 |
| Catalog names | |
| NGC 7391 • UGC 12211 • PGC 69847 • CGCG 379-008 • MCG + 00-58-006 • 2MASX J22503614-0132413 • GC 4849 • H II 443 • h 2185 • GALEX ASC J225036.15-013240.5 • NSA 150216 | |
NGC 7391 is an elliptical galaxy from the Hubble type E1 in the constellation Aquarius on the ecliptic . It is an estimated 142 million light years away from the Milky Way and about 170,000 light years in diameter.
The object was discovered by Wilhelm Herschel on October 1st, 1785 .