NGC 1646
| Galaxy NGC 1646 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Eridanus |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 04 h 44 m 23.5 s |
| declination | -08 ° 31 ′ 52 ″ |
| Appearance | |
| Morphological type | S0o: pec |
| Brightness (visual) | 13.0 likes |
| Brightness (B-band) | 14.0 mag |
| Angular expansion | 2.2 ′ × 1.3 ′ |
| Position angle | 165 ° |
| Surface brightness | 14.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.016068 +/- 0.000090 |
| Radial velocity | (4817 +/- 27) km / s |
|
Stroke distance v rad / H 0 |
(211 ± 15) · 10 6 ly (64.7 ± 4.5) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | January 30, 1786 |
| Catalog names | |
| NGC 1646 • PGC 15914 • MCG -01-13-003 • 2MASX J04442354-0831521 • GC 895 • H II 523 • h 329 • | |
NGC 1646 is a lenticular galaxy of the Hubble type S0 pec in the constellation Eridanus in the southern sky . It is an estimated 211 million light years from the Milky Way .
The object was discovered by Wilhelm Herschel on January 30, 1786 .