NGC 6729 explained

NGC 6729
Type:reflection
Type2:emission nebula
Epoch:J2000
Ra:[1]
Size V:2.5 × 2.0[2]
Names:Caldwell 68

NGC 6729 (also known as Caldwell 68) is a reflection/emission nebula of the Corona Australis Molecular Cloud in the constellation Corona Australis. It was discovered by Johann Friedrich Julius Schmidt in 1861.

This fan-shaped nebula opens from the star R Coronae Australis toward the star T CrA to the south-east. R CrA is a pre-main-sequence star in the Corona Australis molecular complex, one of the closer star-forming regions of the galaxy at a distance of 130 pc. NGC 6729 is a variable nebula which shows irregular variations in brightness and in shape.[3]

See also

Notes and References

  1. Web site: NGC/IC Project Database . Results for NGC 6729 . 2010-12-09 . dead . https://web.archive.org/web/20120520010558/http://www.ngcicproject.org/ngcicdb.asp . 2012-05-20.
  2. Web site: NASA/IPAC Extragalactic Database . Results for NGC 6729 . 2010-12-09 .
  3. Robert Burnham, Jr.: Burnham's Celestial Handbook, Volume 2: Chamaeleon through Orion, pages 695-696: NGC 6726-6727-6729 and R Coronae Australis

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