NGC 6820 Nebula + NGC 6823 OpenCluster in Vulpecula

In the constellation of Vulpecula you can find this pretty object,consisting of the Reflection Nebula NGC6820 and the embedded Open Cluster NGC6823 to its right.

At a real distance of about 6000 light-years it apears as an object of 40 arc-minutes dimension.

Very prominent in NGC6820 is the dust-pillar,resembling an elephant´s trunk.This structure is formed by the strong radiation of the nearby stars,which blow away gaseous material,resulting in the trunk-like feature.

The most famous trunk in the heaven can be found inside the nebula M16,also called the Eagle-Nebula.

NGC6823 contains many young,blue coloured stars,aged about 2mio years.


 position (epoch 2000):

Ra.: 19h 42m 27.92s
Decl.: +23° 05' 14.7"


image data:

Lsynth(R+Ha)GB image from:

Lsynth. = 6 x RGB,1200s each + 6 x Ha 2400s

RGB= 6 x 1200s each

Ha = 8 x 2400s

a total of 11.33 hours

80cm f/7 AstroOptik Keller corrected cassegrain

FLI Proline 16803 Astrodon LRGB GenII filters Prompt 7

CTIO/UNC Chile,remote controlled

image processing: Bernd Flach-Wilken


the central part of the Nebula NGC6820 with the OpenCluster NGC6823 can be seen in this 21.6´x21.6´arc-minutes large FOV

For full resolution click HERE


this is a deitailed look in Halpha to the trunk-like pillar of dust and gas:


Last modified on Tuesday, 24 March 2020 00:17

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