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Contains:  Crescent Nebula, Crescent nebula, NGC 6888, NGC6888, Sh2-105
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Cresent nebula NGC 6888 and the soap bubble

Technical card

Imaging telescopes or lenses:Orion Optics UK CT10 F4.8

Imaging cameras:Zwo Asi 6200 mm pro

Mounts:Skywatcher EQ-6R pro

Guiding telescopes or lenses:Williams Optics Megrez90

Guiding cameras:zwo ASI 120mc

Focal reducers:GPU Pal Gyulai GPU 2" Aplanatic Coma Corrector

Software:PixInsightAdobe PS CS2Deepsky stacker

Filters:Baader Filterset 2"

Dates:May 22, 2020

Frames: 120x300" bin 0x0

Integration: 10.0 hours

Avg. Moon age: 29.30 days

Avg. Moon phase: 0.06% job: 3551841

RA center: 20h 13' 13"

DEC center: +38° 20' 29"

Pixel scale: 0.918 arcsec/pixel

Orientation: -89.806 degrees

Field radius: 0.810 degrees

Resolution: 4968x3945

Locations: Backyard, Eschborn, Hessen, Germany

Data source: Backyard


There are objects, which are more interesting captured in narrowband technique. I think NGC 6888 is one of them. So I worked on that target again but with a wider field to include that nice soap bubble nebula as a HOO pic. For green I mixed H alpha to 25% and OIII to 75% to produce some more natural star colors. Hope you like it



Christoph Lichtblau


Sky plot

Sky plot


Cresent nebula NGC 6888 and the soap bubble, 


            Christoph Lichtblau

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Broadband under Bortle 7/8/9