Horsehead Nebula in color.
Image orientation: North is on the left side.
Telescope: William Optics Megrez II 80mm @ f/6 at Altas EQ mount.
Camera: SBIG ST 2000 @ -15°C.
Exposure: LRGB with L = RGB + Hα, R = R + Hα, Hα - 8x600s, R - 5x600s, G - 5x600s, B - 6x600s. No binning. Total exposure time 4h.
Location: Sahara Sky Hotel, Zagora, South Morocco.
Note: No flat field images could be taken due to technical restrictions. Original image was cropped to remove diffraction pattern caused by the bright star Alnitak.
Processing: MaximDL, Photoshp, Pixinsight.