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NGC 6820 and NGC 6823

From Wikipedia, the free encyclopedia

Emission Nebula NGC6820 with Open Cluster NGC6823
Emission nebula
NGC 6820/NGC 6823
Observation data: J2000.0 epoch
Right ascension19h 42m 27.92s[1]
Declination+23° 05′ 14.7″[1]
Distance6,000[2] ly
Apparent dimensions (V)40 arcmins
ConstellationVulpecula
DesignationsNebula (NGC 6820, Sh2-86)
See also: Lists of nebulae

NGC 6820 is a small reflection 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]

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]

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Image gallery

  • NGC 6820/NGC 6823 – Courtesy: Hunter Wilson
    NGC 6820/NGC 6823 – Courtesy: Hunter Wilson

References

  1. ^ a b "NGC 6820". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2008-07-03.
  2. ^ a b 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.

External links

Wikimedia Commons has media related to NGC 6820.
Wikimedia Commons has media related to NGC 6823.
This page was last edited on 30 May 2024, at 00:35
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