NGC 6231
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AladinLite | |
Constellation | Scorpio |
Position equinox : J2000.0 |
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Right ascension | 16 h 54 m 10.9 s |
declination | -41 ° 49 ′ 27 ″ |
Appearance
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Brightness (visual) | 2.6 likes |
Brightness (B-band) | 2.8 mag |
Angular expansion | 14 ' |
Physical data
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distance | 4050 ly (1243 pc ) |
history | |
Discovered by | Giovanni Battista Hodierna |
Discovery time | around 1654 |
Catalog names | |
NGC 6231 • C 1650-417 • OCl 997 • Mel 153 • Cr 315 • Dun 499 • ESO 332-SC06 • GC 4245 • h 3652 • |
NGC 6231 is the name of an open star cluster in the constellation Scorpio . The object has an apparent brightness of 2.6 mag and an angular expansion of 14 arc minutes and consists of young stars of the spectral classes B and O. It was discovered by Giovanni Battista Hodierna around 1654 .
Web links
- http://www.peripatus.gen.nz/Astronomy/NGC6231.html
- Halley's Discovery of NGC 6231 and the Hazards of Early Star Nomenclature
- Spektrum.de : Labeled environmental recording