NGC 6318
AladinLite | |
Constellation | Scorpio |
Position equinox : J2000.0 |
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Right ascension | 17 h 16 m 11.6 s |
declination | -39 ° 25 ′ 30 ″ |
Appearance
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classification | III2p |
Brightness (visual) | 11.8 mag |
Angular expansion | 5.0 ′ |
Physical data
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distance | 7200 ly (2220 pc ) |
history | |
Discovered by | James Dunlop |
Discovery time | May 13, 1826 |
Catalog names | |
NGC 6318 • Mel 166 • Cr 325 • ESO 333-SC1 • GC 4280 • h 3672 • OCL 1004 • Dunlop 522 • Collinder 325 • C 1714-394 • Bennett 91a |
NGC 6318 is an open star cluster (type definition "III2p") in the constellation Scorpio . It was discovered on May 13, 1826 by James Dunlop with a 9-inch reflector telescope, who wrote it “an exceddingly faint nebula, about 1.5 ′ long and 1 ′ broad, elliptical in the direction of the meridian, with two or three very small stars in it ”.
During his observation with an 18-inch reflector telescope, John Herschel noted “cluster VII class. Rich, pL, R, gbM, stars 12..14th mag, not a globular ".