NGC 6729

Reflection nebula in the constellation Corona Australis
NGC 6729
Reflection nebula
emission nebula
NGC 6729 is the bright fan like nebula at the center of the image.
Observation data: J2000 epoch
Right ascension19h 01m 54.1s[1]
Declination−36° 57′ 12″[1]
Apparent dimensions (V)2.5′ × 2.0′[2]
ConstellationCorona Australis
DesignationsCaldwell 68
See also: Lists of nebulae

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.[1]

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.[1] NGC 6729 is a variable nebula which shows irregular variations in brightness and in shape.[3]

Map showing location of NGC 6729 (Roberto Mura)

See also

  • McNeil's Nebula
  • NGC 1555 (Hind's Variable Nebula)
  • NGC 2261 (Hubble's Variable Nebula)

References

  1. ^ a b c d "NGC/IC Project Database". Results for NGC 6729. Archived from the original on 2012-05-20. Retrieved 2010-12-09.
  2. ^ "NASA/IPAC Extragalactic Database". Results for NGC 6729. Retrieved 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

External links

  • Media related to NGC 6729 at Wikimedia Commons
  • NGC 6729 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
  • v
  • t
  • e



Stub icon

This nebula-related article is a stub. You can help Wikipedia by expanding it.

  • v
  • t
  • e