NGC 6281

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Open star cluster
NGC 6281
AladinLite
Constellation Scorpio
Position
equinox : J2000.0
Right ascension 17 h 04 m 41.3 s
declination -37 ° 59 ′ 07 ″
Appearance

classification II2p
Brightness  (visual) 5.4 likes
Angular expansion 8.0 ′
Physical data

Radial velocity −15 km / s
distance  1550 ly
(479 pc )
history
Discovered by James Dunlop
Discovery time June 5, 1826
Catalog names
 NGC  6281 •  Mel  161 •  Cr  324 •  ESO  332-SC19 •  GC  4265 •  h  3664 • OCL 1003

NGC 6281 is an open star cluster (type definition “II2p”) in the constellation Scorpio and about 1550 light years from Earth. It was discovered on June 5, 1826 by James Dunlop with a 9-inch reflector telescope, who described it as "a curiously curved line of pretty bright small stars, with many very small stars".

During his observation with an 18-inch reflector telescope, John Herschel noted “ap rich, L, pB, cluster VII class, of loose stars 9, 10, 11th mag, which fills 2/3 of field”.

Web links

  • NGC 6281. SIMBAD, accessed July 19, 2016 .
  • NGC 6281. DSO Browser, accessed July 19, 2016 .

Individual evidence

  1. NASA / IPAC EXTRAGALACTIC DATABASE
  2. a b c SEDS : NGC 6281
  3. WEBDA page on NGC 6281
  4. a b Auke Slotegraaf: NGC 6281. Deep Sky Observer's Companion, accessed on July 19, 2016 (English).
  5. Seligman