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 M33 - Triangulum Galaxy 

Map of HII Regions, Star Clouds, Clusters and Stars

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Luminance Hi-stretched full frame

Full Resolution 1993 x 1909

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: October 2010
Location: Pragelato (Torino) - Alps - Italy
Exposure Details: L:H:R:G:B => 220:40:25:15:35 = > (44x5):(4x10):(5x5):(3x5):(7x5) All bin1 [num x minutes]
Cooling Details: -20 °C
Acquisition: Maxim DL/CCD, Perseus
Processing: CCDStack2, PS CS2
Mean FWHM: 2.27
SQM-L: 21.23