NGC 858
| Galaxy NGC 858 |
|
|---|---|
|
|
| NGC 858 & "NGC 858-2" (left) | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 12 m 30.2 s |
| declination | -22 ° 28 ′ 18 ″ |
| Appearance | |
| Morphological type | SB (rs) c? |
| Brightness (visual) | 13.5 likes |
| Brightness (B-band) | 14.2 mag |
| Angular expansion | 1.3 '× 1.1' |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Redshift | 0.041215 +/- 0.000117 |
| Radial velocity | 12356 +/- 35 km / s |
|
Stroke distance v rad / H 0 |
(550 ± 38) · 10 6 Lj (168.7 ± 11.8) Mpc |
| history | |
| discovery | Francis Leavenworth |
| Discovery date | 1886 |
| Catalog names | |
| NGC 858 • PGC 8451 • ESO 478-013 • MCG -04-06-016 • IRAS 02102-2242 • 2MASX J02123015-2228172 • SGC 021011-2242.3 • GALEX ASC J021230.14-222818.1 | |
NGC 858 is a barred spiral galaxy of the Hubble type SBc in the constellation Whale south of the ecliptic . It is estimated 550 million light years away from the Milky Way and has a diameter of about 210,000 ly.
It is discussed whether NGC 858 is gravitationally related to the galaxy 2MASXJ02123376-2228092 (also NGC 858-2 ). It is not known whether the galaxies are really a physical pair or just an optical double .
In the same area of the sky there are still u. a. the galaxies NGC 836 , NGC 837 , NGC 849 .
The property was discovered by Francis Leavenworth in 1886 .