NGC 6820 and NGC 6823

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NGC 6820 and NGC 6823
Emission nebula
NGC6820 JeffJohnson.jpg
NGC 6820/NGC 6823
Observation data: J2000.0 epoch
Right ascension 19h 42m 27.92s [1]
Declination +23° 05 14.7 [1]
Distance6,000 [2]   ly
Apparent dimensions (V)40 arcmins
Constellation Vulpecula
DesignationsNebula (NGC 6820, Sh2-86)
See also: Lists of nebulae

NGC 6820 is a small emission nebula near the open cluster NGC 6823 in Vulpecula. The reflection nebula and cluster are embedded in a large faint emission nebula called Sh 2-86. The whole area of nebulosity is often referred to as NGC 6820. [3]

Contents

M27, the Dumbbell Nebula, is found three degrees to the east, and α Vulpeculae three degrees to the west.

Open star cluster NGC 6823 is about 50 light-years across and lies about 6,000 light-years away. The center of the cluster formed about two million years ago and is dominated in brightness by a host of bright young blue stars. Outer parts of the cluster contain even younger stars. [2] It forms the core of the Vulpecula OB1 stellar association. [4]

References

  1. 1 2 "NGC 6820". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2008-07-03.
  2. 1 2 Nemiroff, R.; Bonnell, J., eds. (4 October 2004). "NGC 6823: Cloud Sculpting Star Cluster". Astronomy Picture of the Day . NASA . Retrieved 2008-07-03.
  3. "Sharpless 86" . Retrieved 2017-11-19.
  4. Billot, N.; Noriega-Crespo, A.; Carey, S.; Guieu, S.; Shenoy, S.; Paladini, R.; Latter, W. (2010). "Young Stellar Objects and Triggered Star Formation in the Vulpecula Ob Association". The Astrophysical Journal. 712 (2): 797. arXiv: 1003.0866 . Bibcode:2010ApJ...712..797B. doi:10.1088/0004-637X/712/2/797. S2CID   28961682.