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Contains:  NGC 6823, NGC 6820
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Sh2-86, NGC 6820, NGC 6823, 





    
        

            Steven Bellavia
Sh2-86, NGC 6820, NGC 6823

Sh2-86, NGC 6820, NGC 6823

Technical card

Resolution: 4100x3500

Dates:Sept. 26, 2019

Frames:
Astronomik 6nm OIII: 17x360" (gain: 140.00) -15C bin 1x1
Optolong 7nm Ha 2": 10x300" (gain: 120.00) -15C bin 1x1

Integration: 2.5 hours

Darks: ~30

Flats: ~30

Flat darks: ~30

Avg. Moon age: 26.89 days

Avg. Moon phase: 7.67%

Bortle Dark-Sky Scale: 3.00

Mean FWHM: 5.00

Temperature: 8.00

Astrometry.net job: 2953211

RA center: 295.809 degrees

DEC center: 23.344 degrees

Pixel scale: 1.360 arcsec/pixel

Orientation: 180.430 degrees

Field radius: 1.018 degrees

Data source: Traveller

Description

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
Open star cluster NGC 6823 is about 50 light years across and lies about 6000 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.

Comments

Author

bellavia
Steven Bellavia
License: None (All rights reserved)
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Sh2-86, NGC 6820, NGC 6823, 





    
        

            Steven Bellavia