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Contains:  34 P Cyg, Crescent Nebula, Crescent nebula, IC 4996, IC4996, NGC 6888, NGC6888, PK076+01.2, Sh2-105, The star 34Cyg
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NGC6888 Crescent nebula, 


            Riedl Rudolf
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NGC6888 Crescent nebula

Technical card

Dates:April 23, 2020

Frames: 43x182" ISO1600

Integration: 2.2 hours

Darks: ~25

Flats: ~25

Bias: ~25

Avg. Moon age: 0.35 days

Avg. Moon phase: 0.14%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.60

Temperature: 2.00 job: 3508930

RA center: 20h 13' 52"

DEC center: +38° 15' 7"

Pixel scale: 2.531 arcsec/pixel

Orientation: -174.500 degrees

Field radius: 1.253 degrees

Resolution: 2969x1968

Locations: Home, St. Peter/O., Steiermark, Austria

Data source: Backyard


NGC 6888 is a big nebula in cygnus. The size is 18 x 13 arcmin. Distance is about 4700 Lj.



Riedl Rudolf
License: None (All rights reserved)


  • NGC6888 Crescent nebula, 


            Riedl Rudolf
  • Final
    NGC6888 Crescent nebula, 


            Riedl Rudolf


Description: Reinhard raised my attention to the fact, that the picture miss the blue color mostly. He made as well a quick revision which I think is really good and therefore I post it as a better version. Thanks again Reinhard!!

Sky plot

Sky plot


NGC6888 Crescent nebula, 


            Riedl Rudolf

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