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 Melotte 15 in IC1805 

Full   Resolution 1500 x 1500

100% Crop of Melotte 15

Optics: GSO RC 10" Reduced to F/5.3 1320mm. With AP-CCDT67 - Astrograph Ritchie-Chrétien
Mount: AP Mach1 GTO on Gemini Q-Lock tripod
Camera: ATIK 4000LE with SX USB Filter Wheel
Filters: Baader LRGB 2" + HAlpha 7nm
Guiding Systems: SX OAG with SX Lodestar
Dates/Times: 28 October 2010
Location: Pragelato (Torino) - Alps - Italy
Exposure Details: H+R:G:B => 210:40:40 = > (17x10)+(8x5):(7x5):(7x5) All bin1 [num x minutes]
(Luminance from H+R)
Cooling Details: -20 °C
Acquisition: Maxim DL/CCD, Perseus
Processing: CCDStack, PixInsight, PS CS2
Mean FWHM: 1.88
SQM-L: 21.12