NGC 181
| Galaxy NGC 181 |
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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 | 00 h 38 m 23.2 s |
| declination | + 29 ° 28 ′ 21 ″ |
| Appearance | |
| Morphological type | S? |
| Brightness (visual) | 14.9 mag |
| Brightness (B-band) | 15.8 mag |
| Angular expansion | 0.7 ′ × 0.2 ′ |
| Position angle | 147 ° |
| Surface brightness | 12.6 mag / arcmin² |
| Physical data | |
| Affiliation |
Abell 71 WBL 013-001 |
| Redshift | 0.018463 ± 0.000033 |
| Radial velocity | 5535 ± 10 km / s |
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Stroke distance v rad / H 0 |
(254 ± 18) x 10 6 ly (78.0 ± 5.5) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | October 6, 1883 |
| Catalog names | |
| NGC 181 • PGC 2287 • CGCG 500-055 • MCG + 05-02-032 • 2MASX J00382319 + 2928214 • GALEX ASC J003823.20 + 292821.5 • LDCE 39 NED002 | |
NGC 181 is a galaxy of Hubble type S? in the constellation Andromeda in the northern sky . It is estimated to be 254 million light years from the Milky Way and about 50,000 light years in diameter.
The galaxies NGC 183 and NGC 184 lie in the same area of the sky .
The object was discovered on October 6, 1883 by the French astronomer Édouard Stephan .
Web links
Commons : NGC 181 - collection of images, videos, and audio files
Individual evidence