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VdB 15, RGB, 


VdB 15, RGB
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VdB 15, RGB

Technical card

Imaging telescope or lens:Astro-Tech AT106ED

Imaging camera:ZWO ASI071MC-Cool


Guiding camera:Lodestar

Focal reducer:Riccardi Reducer/Flattener 0.75x

Software:StarToolsPHD GuidingSeqence Generator ProAstroPixel ProcessorGIMP 2.9 GIMP 2

Dates:Oct. 30, 2019

Frames: 200x100"

Integration: 5.6 hours

Avg. Moon age: 2.57 days

Avg. Moon phase: 7.31%

Basic astrometry details job: 3133391

RA center: 3h 30' 7"

DEC center: +59° 11' 20"

Pixel scale: 1.842 arcsec/pixel

Orientation: 89.664 degrees

Field radius: 1.262 degrees

Resolution: 4054x2808

Locations: Paradise, Chiricahua Mountains, AZ, United States

Data source: Backyard


I really struggled with this one. For some reason, I'm now getting halos around all bright stars, independent of color, and really fought with them during processing. Startools has two stretching options and one results in quite nice stars, but bright halos. The other, smaller halos, but bloated stars! The brighter stars are a blend of the two. 200x100s, gain 50.



License: Attribution-NonCommercial Creative Commons

Sky plot

Sky plot


VdB 15, RGB,