Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
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Crescent Nebula - BiColor with a dab of SII, 



    
        

            John Butler
Crescent Nebula - BiColor with a dab of SII
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Crescent Nebula - BiColor with a dab of SII

Imaging telescopes or lenses: Celestron Edge 8 HD

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Astro-Physics AP900

Guiding cameras: Starlight Xpress Ultrastar

Focal reducers: Celestron .7x Focal Reducer

Software: OpenPHD PHD2 Guiding  ·  Seqence Generator Pro  ·  PixInsight

Filters: Astrodon SII 1.25 5nm  ·  ASTRODON HA 5NM  ·  Astrodon OIII 1.25 5nm

Accessory: ZWO 8x 1.25" Filter Wheel (EFW)  ·  Intel NUC  ·  qhyccd polemaster  ·  Starizona Microtouch Autofocuser


Dates:July 4, 2017July 18, 2017

Frames:
ASTRODON HA 5NM: 63x240" (gain: 200.00) -15C bin 2x2
Astrodon OIII 1.25 5nm: 82x120" (gain: 200.00) -15C bin 2x2
Astrodon SII 1.25 5nm: 82x120" (gain: 200.00) -15C bin 2x2

Integration: 9.7 hours

Darks: ~25

Flats: ~25

Bias: ~100

Avg. Moon age: 17.26 days

Avg. Moon phase: 56.25%

Bortle Dark-Sky Scale: 7.00


Astrometry.net job: 1659771

RA center: 20h 11' 59"

DEC center: +38° 20' 27"

Pixel scale: 1.053 arcsec/pixel

Orientation: 59.741 degrees

Field radius: 0.398 degrees


Resolution: 2205x1596

Locations: Backyard, Edison, New Jersey, United States

Description

Finally was able to get some OIII and SII.
Final Mix after playing around alot, copying ideas from other people's posts on CN and looking at images on Astrobin for validation:
R - Ha
G - .5 * OIII + .25 * Ha + .25 * SII
B - OIII

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Crescent Nebula - BiColor with a dab of SII, 



    
        

            John Butler