NGC 477
| Galaxy NGC 477 |
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|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | Andromeda |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 01 h 21 m 20.4 s |
| declination | + 40 ° 29 ′ 17 ″ |
| Appearance | |
| Morphological type | SAB (s) c / Seyfert 2 |
| Brightness (visual) | 13.1 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.5 ′ × 0.9 ′ |
| Position angle | 150 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.019600 ± 0.000027 |
| Radial velocity | 5876 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(270 ± 19) · 10 6 ly (82.7 ± 5.8) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | October 18, 1786 |
| Catalog names | |
| NGC 477 • UGC 886 • PGC 4915 • CGCG 536-032 • MCG + 07-03-032 • 2MASX J01212039 + 4029176 • GC 268 • H III 577 • h 100 • NVSS J012121 + 402908 • USGC U057 NED03 | |
NGC 477 is a bar-spiral galaxy with an active nucleus of the Hubble type SBc in the constellation Andromeda in the northern sky . It is estimated to be 270 million light years from the Milky Way and about 115,000 light years in diameter.
The object was discovered by Wilhelm Herschel on October 18, 1786 .
Web links
Commons : NGC 477 - collection of images, videos, and audio files
