NGC 6971
| Galaxy NGC 6971 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | dolphin |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 20 h 49 m 23.76 s |
| declination | + 05 ° 59 ′ 44.1 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.7 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.1 '× 0.9' |
| Position angle | 60 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.018296 ± 0.000207 |
| Radial velocity | 5485 ± 62 km / s |
|
Stroke distance v rad / H 0 |
(253 ± 18) x 10 6 ly (77.5 ± 5.5) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | August 15, 1863 |
| Catalog names | |
| NGC 6971 • UGC 11637 • PGC 65462 • CGCG 400-003 • MCG + 01-53-002 • 2MASX J20492375 + 0559440 • 2MASS J20492376 + 0559441 • LDCE 1425 NED001 • WISEA J204923.79 + 055944.1 | |
NGC 6971 is a spiral galaxy of Hubble type Sb in the constellation Dolphin at the northern sky . It is estimated to be 253 million light years from the Milky Way and about 80,000 light years in diameter.
The object was discovered by Albert Marth on August 15, 1863 .