2
Takahashi FSQ-106ED with 645RD QE0.72X@SBIG STL-11000M MitsuboshiOAG
Astrodon Ha 6nm 170min. G40min. B40min.
MaxIm DL5.16, Stellaimage5, CCDStack2.0, PhotoshopCS3

Region of Horsehead Nebula in Orion
05h40m52.9 -02 28 00 Dim 6'x4' Opacity 4