Imaging telescope or lens: Teleskop-Service ONTC 8" f4
Imaging camera: ZWO ASI1600MM-Cool
Mount: Astro-Physics Mach1GTO
Guiding telescope or lens: Teleskop-Service ONTC 8" f4
Guiding camera: SXV Lodestar
Filter: Baader LRGB 1.25'' CCD Filters
Accessory: Skywatcher Coma corrector
Dates: Oct. 19, 2017
Integration: 5.0 hours
Avg. Moon age: 29.25 days
Avg. Moon phase: 0.09%
Astrometry.net job: 1781135
RA center: 339.180 degrees
DEC center: 34.250 degrees
Pixel scale: 1.967 arcsec/pixel
Orientation: 270.751 degrees
Field radius: 0.687 degrees
This image was taken on 10/19/2017 at the Staunton River Star Party. Sky looked clear but as night went on I found it very difficult to understand guiding RMS (growing) and HFR of stars (also growing). I was able to look at a Satellite IR loop and noticed a thin area of moisture/clouds was moving over us very quickly. Conferring with visual obervers nearby confirmed my observations that seeing had gone out the window! At the start of the night I was getting an HFR of around 1.3 for my stars and by 11pm it had grown to 3.0! Pretty huge change quickly.
Since guiding was continuing to work and the background level hadn't jumped up too much I decided to let Ekos plug through my LRGB sequence and see how it turned out.
The resulting data was very soft and lacking the usual punch of contrast I like, but I think it was salvageable and I thought it was interesting even on a night that falls apart you can still have fun imaging.
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