NGC 6404
| AladinLite | |
| Constellation | Scorpio |
|
Position equinox : J2000.0 |
|
|---|---|
| Right ascension | 17 h 39 m 37.3 s |
| declination | -33 ° 14 ′ 48 ″ |
| Appearance
|
|
| classification | III3m |
| Brightness (visual) | 10.6 mag |
| Angular expansion | 6 ′ |
| Physical data
|
|
| Radial velocity | 10 km / s |
| distance | 5900 ly (1820 pc ) |
| history | |
| Discovered by | John Herschel |
| Discovery time | June 27, 1837 |
| Catalog names | |
| NGC 6404 • Cr 340 • ESO 393-SC13 • GC 4317 • h 4020 • OCL 1024 | |
NGC 6404 is an open star cluster (type definition "III3m") in the constellation Scorpio . It was discovered on June 27, 1837 by John Herschel with an 18-inch reflecting telescope.
Web links
- NGC 6404. SIMBAD, accessed July 31, 2016 .
- NGC 6404. DSO Browser, accessed July 31, 2016 .
- Auke Slotegraaf: NGC 6404. Deep Sky Observer's Companion, accessed July 31, 2016 (English).