Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
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Crescent Nebula, 



    
        

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Crescent Nebula
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Crescent Nebula

Getting plate-solving status, please wait...
Crescent Nebula, 



    
        

            hy
Crescent Nebula
Powered byPixInsight

Crescent Nebula

Technical card

Imaging telescopes or lenses: Williams Optics Zenithstar 105 ED Triplet APO

Imaging cameras: ZWO ASI1600mm Pro Cooled

Mounts: Orion Atlas AZ/EQ Pro

Guiding cameras: QHY5L-II-M

Focal reducers: William Optics 0.8x Reducer/Flattener Flat6A II

Software: KStars Ekos/INDI, Stellarmate OS  ·  Adobe Lighroom CC Classic  ·  PixInsight 1.8

Filters: Astronomik OIII 31mm 6nm  ·  Astronomik Ha 31mm 6nm


Dates:July 1, 2019

Frames:
Astronomik Ha 31mm 6nm: 22x480" (gain: 139.00) -25C bin 1x1
Astronomik OIII 31mm 6nm: 20x480" (gain: 139.00) -25C bin 1x1

Integration: 5.6 hours

Darks: ~25

Flats: ~25

Bias: ~21

Avg. Moon age: 28.10 days

Avg. Moon phase: 2.29%

Bortle Dark-Sky Scale: 2.00

Temperature: 4.00


Basic astrometry details

Astrometry.net job: 2788558

RA center: 20h 12' 11"

DEC center: +38° 23' 6"

Pixel scale: 1.233 arcsec/pixel

Orientation: 355.292 degrees

Field radius: 1.073 degrees


Resolution: 5000x3780

Data source: Traveller

Description

Taken night #3 of GSSP 2019 on July 1.
Ha/OIII bicolor image, starting imaging around 10pm until about 4am.
Got the colors with a slight modification to the PixelMath formula given in https://www.reddit.com/r/astrophotography/comments/3arde4/crescent_nebula_ngc_6888_narrowband_bicolor_image/

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Crescent Nebula, 



    
        

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