NGC 868
| Galaxy NGC 868 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 15 m 58.5 s |
| declination | -00 ° 42 ′ 46 ″ |
| Appearance | |
| Morphological type | E / S0: |
| Brightness (visual) | 14.1 mag |
| Brightness (B-band) | 15.1 mag |
| Angular expansion | 1.30 × 1.0 |
| Position angle | 95 ° |
| Surface brightness | 14.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.026837 +/- 0.000073 |
| Radial velocity | 8046 +/- 22 km / s |
|
Stroke distance v rad / H 0 |
(361 ± 25) x 10 6 ly (110.6 ± 7.7) Mpc |
| history | |
| discovery | Lewis A. Swift |
| Discovery date | October 3, 1886 |
| Catalog names | |
| NGC 868 • UGC 1748 • PGC 8659 • CGCG 387-063 • | |
NGC 868 is an elliptical galaxy of Hubble type E / S0 in the constellation Cetus south of the celestial equator . It is an estimated 361 million light years away from the Milky Way and about 140,000 light years in diameter .
The galaxies NGC 863 and NGC 856 are located in the same area of the sky .
The object was on 3 October 1886 by Lewis A. Swift using a 16-inch - telescope discovered.