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Contains:  Crescent nebula, NGC 6888
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NGC 6888 - The Crescent Nebula

Technical card

Imaging telescope or lens:Stellarvue SV4

Imaging camera:ZWO ASI1600MM-Cool

Mount:Astro-Physics Mach1 GTO

Guiding telescope or lens:Stellarvue SV4

Guiding camera:QHY5L-II-M

Focal reducer:Astro-Tech AT2FF Field Flattener

Software:Sequence Generator ProPSPixInsightPHD2

Filters:Astrodon Ha 1.25 5nmAstrodon OIII 1.25 3nm

Resolution: 1800x1800

Dates:July 8, 2018July 11, 2018

Astrodon Ha 1.25 5nm: 217x180" (gain: 200.00) -15C bin 1x1
Astrodon OIII 1.25 3nm: 213x180" (gain: 200.00) -15C bin 1x1

Integration: 21.5 hours

Avg. Moon age: 25.98 days

Avg. Moon phase: 15.80%

Bortle Dark-Sky Scale: 7.00 job: 2175198

RA center: 303.043 degrees

DEC center: 38.334 degrees

Pixel scale: 1.108 arcsec/pixel

Orientation: 0.297 degrees

Field radius: 0.392 degrees

Locations: Home, San Jose, California, United States

Data source: Backyard


A cropped version of my previous Crescent Nebula image for a different look.



Alan Pham

Sky plot

Sky plot


NGC 6888 - The Crescent Nebula, 


            Alan Pham