Sh2-86 in Vulpecula
Sh2-86 / NGC 6820 / NGC 6823
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. 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. It forms the core of the Vulpecula OB1 stellar association.


Image Details
Date
July 7 & August 22, 2023
LOCATion
Hannover (Germany)
Sky Quality
Bortle 5
Telescope
Skywatcher 200/1000 @750mm f/3.75
Mount
Skywatcher EQ6-R Pro
Main Cameras
TS 2600 MP
Gain 100, Offset 50, -10°
Focuser
ZWO EAF
Filter
Antlia EDGE OIII 4.5nm
Antlia EDGE H-alpha 4.5nm
Exposure
Ha: 75 × 120″ (2h 30′)
OIII: 40 × 120″ (1h 20′)
Total: 3h 50′
Guiding
ZWO ASI 120MM, PHD2
Calibration
Flats, Darks, Darkflats
Software
N.I.N.A., EQMod
Other
Starizona Nexus Reducer & Corrector
Processing
Astropixelprocessor, Photoshop, Pixinsight
  
  
Gallery
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