NGC 2187
| Galaxy NGC 2187 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Swordfish |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 06 h 03 m 48.5 s |
| declination | -69 ° 35 ′ 00 ″ |
| Appearance | |
| Morphological type | (Sa?) + (E :) |
| Brightness (visual) | 1: 12.3 mag 2: 12.0 mag |
| Brightness (B-band) | 1: 13.2 mag 2: 12.9 mag |
| Angular expansion | 1: 1.30 x 0.9 2: 1.70 x 0.9 |
| Position angle | 1/2: 99 ° |
| Surface brightness | 1/2: 12.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.013316 ± 0.000117 |
| Radial velocity | (3992 ± 35) km / s |
|
Stroke distance v rad / H 0 |
(169 ± 12) · 10 6 ly (51.9 ± 3.7) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | December 23, 1834 |
| Catalog names | |
| NGC 2187 • PGC 18354/18355 • ESO 57-68 • IRAS 06041-6934 • | |
| 1: PGC 18354, 2: PGC 18355 | |
NGC 2187 is an interacting galaxy pair consisting of two spiral galaxies of the Hubble type Sa in the constellation Dorado in the southern sky . They are an estimated 169 million light years from the Milky Way .
The object was discovered by John Herschel on December 23, 1834 .