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 NGC1931 


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Optics: GSO RC 10" F8 2000mm - Astrograph Ritchie-Chrétien
Mount: AP Mach1 GTO on Gemini Q-Lock tripod
Camera: QSI 640 WSG
Filters: Astrodon LRGB I Series Gen II - HA 5nm
Guiding Systems: SXV-AO-LF Active Optics - SX Lodestar
Dates/Times: 06 November 2015 / 09-13-19-26 December 2015
Location: Pragelato - Turin - Italy
Exposure Details: L:H:R:G:B => 440:480:64:56:64 = > (44x10):(16x30):(8x8):(7x8):(8x8) Color Bin2 [num x minutes]
Cooling Details: -25°C
Acquisition: Maxim DL/CCD, TheSkyX, Voyager
Processing: CCDStack2+, PS CS5
Mean FWHM: 1.57 / 3.28"
SQM-L: 20.80 / 21.10