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Contains:  Crescent nebula, NGC 6888
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NGC 6888 Narrow Band, 


            Rudolf Bumm
NGC 6888 Narrow Band
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NGC 6888 Narrow Band

Technical card

Imaging telescopes or lenses:Celestron 8'' Newtorian

Imaging cameras:ZWO ASI1600MMC

Mounts:iOptron CEM60


Dates:July 25, 2018

Frames: 80x180"

Integration: 4.0 hours

Avg. Moon age: 12.66 days

Avg. Moon phase: 95.08%

Basic astrometry details job: 2171318

RA center: 20h 12' 27"

DEC center: +38° 15' 0"

Pixel scale: 0.864 arcsec/pixel

Orientation: 104.750 degrees

Field radius: 0.657 degrees

Resolution: 4356x3318

Locations: Mirasteilas observatory, Falera, Graubünden, Switzerland

Data source: Backyard


The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth.

Image taken at Mirasteilas observatory, Falera, Switzerland, 1288 m.

Astronomik narrow band filters.
High gain (unity) 139, offs 21
Ha 40 x 180s, OIII 40 x 300s (240 min)
Ha 6 nm -> R, OIII 12 nm -> G, OIII 12 nm -> B



Rudolf Bumm
License: None (All rights reserved)

Sky plot

Sky plot


NGC 6888 Narrow Band, 


            Rudolf Bumm