NGC 291
| Galaxy data from NGC 291 |
|
|---|---|
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| SDSS recording | |
| AladinLite | |
| Constellation | whale |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 53 m 29.9 s |
| declination | -08 ° 46 ′ 04 ″ |
| Appearance | |
| Morphological type | (R ') SB (r) a: / Sy2 / HII |
| Brightness (visual) | 13.9 likes |
| Brightness (B-band) | 14.8 mag |
| Angular expansion | 1 ′, 1 × 0 ′, 6 |
| Position angle | 45 ° |
| Surface brightness | 13.3 mag / arcmin² |
| Physical data | |
| Redshift | 0.019029 ± 0.000014 |
| Radial velocity | 5705 ± 4 km / s |
|
Stroke distance v rad / H 0 |
(257 ± 18) x 10 6 ly (78.9 ± 5.5) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | September 27, 1864 |
| Catalog names | |
| NGC 291 • PGC 3140 • MCG -02-03-035 • IRAS 00510-0901 • 2MASX J00532993-0846034 • GC 5121 • NVSS J005329-084604 | |
NGC 291 is an active spiral galaxy with extensive star formation regions of the Hubble type Sa in the constellation Whale south of the celestial equator . It is estimated to be 257 million light years away from the Milky Way and has a diameter of about 80,000 ly.
In the same area of the sky are the galaxies NGC 270 and NGC 277 , among others .
The object was discovered on September 27, 1864 by the German astronomer Albert Marth .