NGC 841
| Galaxy NGC 841 |
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|---|---|
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Andromeda |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 02 h 11 m 17.3 s |
| declination | + 37 ° 29 ′ 50 ″ |
| Appearance | |
| Morphological type | (R ') SAB (s) ab / LINER |
| Brightness (visual) | 12.6 mag |
| Brightness (B-band) | 13.4 mag |
| Angular expansion | 1.8 ′ × 1 ′ |
| Position angle | 135 ° |
| Surface brightness | 13.1 mag / arcmin² |
| Physical data | |
| Affiliation | NGC 841 group LGG 51 |
| Redshift | 0.015144 ± 0.000023 |
| Radial velocity | 4540 ± 7 km / s |
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Stroke distance v rad / H 0 |
(209 ± 15) · 10 6 ly (64 ± 4.5) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | November 24, 1883 |
| Catalog names | |
| NGC 841 • UGC 1676 • PGC 8372 • CGCG 522-131 • MCG + 6-5-101 • IRAS 02082 + 3715 • KUG 0208 + 372 • 2MASX J02111733 + 3729499 • V Zw 194, LDCE 148 NED004 | |
NGC 841 is a barred spiral galaxy with an active galactic nucleus from Hubble type SBab in the constellation Andromeda on the northern sky . It is estimated to be 210 million light years from the Milky Way and about 110,000 light years in diameter .
In the same area of the sky are u. a. the galaxies NGC 834 and NGC 845 .
The object was discovered on November 24, 1883 by the astronomer Édouard Jean-Marie Stephan .