NGC 6446
| Galaxy NGC 6446 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Hercules |
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Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 17 h 46 m 07.5 s |
| declination | + 35 ° 34 ′ 10 ″ |
| Appearance | |
| Morphological type | Sab |
| Brightness (visual) | 15.2 mag |
| Brightness (B-band) | 16.0 mag |
| Angular expansion | 0.7 ′ × 0.6 ′ |
| Position angle | 9 ° |
| Surface brightness | 14.1 mag / arcmin² |
| Physical data | |
| Redshift | 0.022549 +/- 0.000043 |
| Radial velocity | 6760 +/- 13 km / s |
|
Stroke distance v rad / H 0 |
(311 ± 22) x 10 6 ly (95.2 ± 6.7) Mpc |
| history | |
| discovery | Albert Marth |
| Discovery date | July 9, 1864 |
| Catalog names | |
| NGC 6446 • PGC 60825 • CGCG 199-018 • MCG + 06-39-018 • 2MASX J17460751 + 3534100 • GC 5876 • | |
NGC 6446 is a 15.2 likes bright spiral galaxy of Hubble type Sab in the constellation Hercules . It is an estimated 311 million light years away from the Milky Way and forms a gravitationally bound double galaxy with NGC 6447
The object was discovered by Albert Marth on July 9, 1864 .
Web links
- NGC 6446. SIMBAD, accessed August 1, 2016 .
- NGC 6446. DSO Browser, accessed August 1, 2016 .
- Auke Slotegraaf: NGC 6446. Deep Sky Observer's Companion, accessed August 1, 2016 .