The Great Orion Nebula (M42 & M43)
SII - Ha - OIII

Date: October 9, 2008
Instrument: C14 w/Astro-Physics 1200 Mount
Imaged with SBIG ST11K w/8 Position Filter Wheel and AO-L, AstroDon MOAG, Van Slyke Focuser, STL remote guide head
Exposure: RGB
60 Min SII on Red Channel, 30 Min H-Alpha on Green Channel, 30 Min OIII on Blue Channel
Sub-exposures were 5 Minutes on H-Alpha and OIII, 10 Minutes on SII
All Exposures Unbinned
Sub-Images Aligned and Combined in Maxim DL
Color Combine in Maxim DL
Gamma Stretch and Background Subtraction with Pixel Math in MaxIM DL
Slight Color Adjustment and in Picture Window Pro
Curves applied in PhotoShop CS2
Location: My Dark Sky Site in Highland County, OH