NGC 5990
| Galaxy NGC 5990 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Snake |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 15 h 46 m 16.3 s |
| declination | + 02 ° 24 ′ 56 ″ |
| Appearance | |
| Morphological type | (R ') Sa / Sy2 / LIRG |
| Brightness (visual) | 12.3 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 1.6 ′ × 0.9 ′ |
| Position angle | 115 ° |
| Surface brightness | 12.5 mag / arcmin² |
| Physical data | |
| Affiliation | WBL 586-003 |
| Redshift | 0.012806 ± 0.000017 |
| Radial velocity | (3839 ± 5) km / s |
|
Stroke distance v rad / H 0 |
(174 ± 12) · 10 6 ly (53.2 ± 3.7) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 5, 1785 |
| Catalog names | |
| NGC 5990 • UGC 10024 • PGC 55993 • CGCG 050-101 • MCG + 01-40-014 • IRAS 15437 + 0234 • 2MASX J15461637 + 0224558 • GC 4135 • H II 425 • h 1935 • LDCE 1146 NED003 | |
NGC 5990 is an active , spiral infrared galaxy of the Hubble type Sa in the constellation Snake in the northern sky . It is an estimated 174 million light years from the Milky Way and about 80,000 light years in diameter.
The object was discovered on May 5, 1785 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "F, cS, iR, stellar".