M51 – Whirlpool Galaxy

M51 - Whirlpool Galaxy by Pegaso0970
M51 – Whirlpool Galaxy, a photo by Pegaso0970 on Flickr.

Optics: GSO RC 10″ F8 2000mm – Astrograph Ritchie-Chrétien
• Mount: AP Mach1 GTO on Gemini Q-Lock tripod
•Camera: ATIK 4000LE with SX USB
•Filter Wheel Filters: Baader LRGB 2″
•Guiding Systems: SXV-AO-LF Active Optics – SX Lodestar
•Dates/Times: 7 Aprile 2011 Location: Pragelato (Torino) – Alps – Italy
•Exposure Details: L:R:G:B => 240:50:40:50 = > (24×10):(5×10):(4×10):(5×10) All Bin1 [num x minutes]
•Cooling Details: -20 °C
•Acquisition: Maxim DL/CCD, Perseus
•Processing: CCDStack2, PS CS2, GradientXTerminator
•Mean FWHM: 2.40 / 3.22 ”
•SQM-L: 21.24


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