Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
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NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1, 



    
        

            Martin Junius
NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1
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NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1

Getting plate-solving status, please wait...
NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1, 



    
        

            Martin Junius
NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1
Powered byPixInsight

NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1

Technical card

Imaging telescopes or lenses: Skywatcher Esprit 100ED APO Triplet

Imaging cameras: QHYCCD QHY268M

Mounts: Skywatcher AZ EQ6 GT

Guiding cameras: Lodestar X2

Focal reducers: Skywatcher Esprit 100 F5.5 flattener

Software: N.I.N.A. Nighttime Imaging 'N' Astronomy  ·  Adobe Photoshop Lightroom Classic  ·  Pleiades Astrophoto S.L. PixInsight 1.8 Ripley  ·  PHD2 Guiding  ·  Cartes du Ciel

Filters: Optolong OIII 36mm 6.5nm  ·  Optolong H-Alpha 36mm 7nm


Dates:July 17, 2021July 18, 2021Aug. 13, 2021

Frames:
Optolong H-Alpha 36mm 7nm: 19x600" (3h 10') (gain: 56.00) -5C bin 1x1
Optolong OIII 36mm 6.5nm: 22x600" (3h 40') (gain: 56.00) -5C bin 1x1

Integration: 6h 50'

Darks: 20

Flats: 20

Bias: 50

Avg. Moon age: 7.03 days

Avg. Moon phase: 46.50%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.87

Temperature: 16.33


Basic astrometry details

Astrometry.net job: 4913383

RA center: 20h 11' 4"

DEC center: +39° 0' 32"

Pixel scale: 1.400 arcsec/pixel

Orientation: 90.579 degrees

Field radius: 1.404 degrees


Resolution: 6077x3896

Locations: Dellbrück, Köln, NW, Germany

Data source: Backyard

Description

Bicolor processing of NGC 6888 data, follow-up to the previous H-alpha only image.

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NGC 6888 - Crescent Nebula - Jul/Aug 2021 - Bicolor v1, 



    
        

            Martin Junius

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