NGC 6471
| Galaxy NGC 6471 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Dragon |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 17 h 44 m 15.6 s |
| declination | + 67 ° 35 ′ 31 ″ |
| Appearance | |
| Morphological type | 1: Sc 2: Scd |
| Brightness (visual) | 1: 14.7 mag 2: 15.3 mag |
| Brightness (B-band) | 1: 15.4 mag 2: 16.0 mag |
| Angular expansion | 1: 1.4 ′ × 0.3 ′ 2: 0.3 ′ × 0.3 ′ |
| Position angle | 1: 173 ° |
| Surface brightness | 1: 13.6 2: 12.5 mag / arcmin² |
| Physical data | |
| Redshift | 1: 0.027085 +/- 0.000143 |
| Radial velocity | 1: 8120 +/- 43 km / s |
|
Stroke distance v rad / H 0 |
(372 ± 26) x 10 6 ly (114.0 ± 8.0) Mpc |
| history | |
| discovery | Lewis Swift |
| Discovery date | September 25, 1886 |
| Catalog names | |
| NGC 6471 • UGC 10973 • PGC 60773, 60779 • CGCG 321-038, 322-008, 322-009 • MCG + 11-21-23, + 11-21-24 • IRAS 17444 + 6737 • | |
NGC 6471 is an optical double galaxy, consisting of the individual components MCG + 11-21-24 (also NGC 6471-1 or NGC 6471e ) and UGC 10973 (also NGC 6471-2 or NGC 6471w ). MCG + 11-21-24 is a 14.7 may bright spiral galaxy from the Hubble type Sc; UGC 10973 a 15.3 mag spiral galaxy of the Hubble type Scd. Both galaxies are found in the Dragon constellation and were discovered as an object by Lewis A. Swift on September 25, 1886 .
NGC 6471 is part of an optical galaxy cluster made up of the six closely spaced galaxies NGC 6456 , NGC 6463 , NGC 6470 , NGC 6471 , NGC 6472 and NGC 6477 . A final clear identification based on Swift's observations is still pending.