Saturn August 19, 2016

All Images Copyright Steve Cannistra

Image scale:  0.12 arcsec/pixel
North pole at top

Photographic Details:
Dates:  August 19, 2016, video capture from 9:00 to 9:45PM EST
Scope:  Celestron 9.25" (235mm), native focal length 2350mm, f10 (used at f25 with Televue 2.5x 1.25" Powermate, with a functional focal length of 5875mm)
Camera:  Skyris 132 monochrome video camera, pixel size 3.5 um, with Starlight Xpress USB powered 5 position filter wheel for 2" filters
2" mounted Baader LRGB filters
Seeing conditions:  Poor, Altitude varied from about 23 degrees to 20 degrees during capture.  Saturn is positioned too low for good seeing.
Location:  Needham, MA
Post-processing: Video capture in FireCapture, video stacking in AutoStakkert!, wavelet processing in Registax, final processing in Photoshop (LRGB combine) using a combination of Astraimage, Topaz denoise, and unsharp masking
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