NGC 6255
Galaxy NGC 6255 |
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SDSS recording | |
AladinLite | |
Constellation | Hercules |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 16 h 54 m 47.9 s |
declination | + 36 ° 30 ′ 04 ″ |
Appearance | |
Morphological type | SBcd |
Brightness (visual) | 12.8 mag |
Brightness (B-band) | 13.5 likes |
Angular expansion | 3.6 ′ × 1.5 ′ |
Position angle | 85 ° |
Surface brightness | 13.5 mag / arcmin² |
Physical data | |
Redshift | 0.003065 +/- 0.000007 |
Radial velocity | 919 +/- 2 km / s |
Stroke distance v rad / H 0 |
(48 ± 3) x 10 6 ly (14.8 ± 1.0) Mpc |
history | |
discovery | Wilhelm Herschel |
Discovery date | May 16, 1787 |
Catalog names | |
NGC 6255 • UGC 10606 • PGC 59244 • CGCG 197-018 • MCG + 06-37-014 • IRAS 16530 + 3634 • KUG 1653 + 365 • GC 4257 • H III 689 • h 1973 • |
NGC 6255 is a 12.8 mag bright bar -spiral-shaped Low Surface Brightness Galaxy of the Hubble-type SBc in the constellation Hercules and about 48 million light years from the Milky Way.
It was discovered on May 16, 1787 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, cL, iE, nearly in parallel".
Web links
- NGC 6255.SIMBAD , accessed July 13, 2016 .
- NGC 6255. DSO Browser, accessed July 13, 2016 .