NGC 3993
| Galaxy NGC 3993 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | lion |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 11 h 57 m 37.8 s |
| declination | + 25 ° 14 ′ 26 ″ |
| Appearance | |
| Morphological type | Sb: sp |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.7 mag |
| Angular expansion | 1.6 ′ × 0.4 ′ |
| Position angle | 141 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Affiliation | LGG 260 |
| Redshift | 0.016104 +/- 0.000030 |
| Radial velocity | 4828 +/- 9 km / s |
|
Stroke distance v rad / H 0 |
(215 ± 15) · 10 6 ly (65.8 ± 4.6) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | April 6, 1785 |
| Catalog names | |
| NGC 3993 • UGC 6935 • PGC 37619 • CGCG 127-112 • MCG + 04-28-101 • IRAS 11552 + 2532 • KUG 1155 + 255A • 2MASX J11573783 + 2514261 • GC 2640 • H III 324 • LDCE 0854 NED003, HOLM 308A | |
NGC 3993 is a spiral galaxy from the Hubble type SBb / P in Leo on the ecliptic . It is an estimated 215 million light years from the Milky Way . Together with five other galaxies, it forms the NGC 3997 group ( LGG 260 ).
The object was discovered by Wilhelm Herschel on April 6, 1785 .