B33 35 X 600s 31 darks crop gradient PPx4 final, sharpened 800
PhotoPlus x4 version 800px
The Horsehead nebula in Ha.
Captured in January and February 2012. 35 x 600s.
Camera: Atik 383L+
Mount: CGEM DX
Guiding: Atik OAG, IMGOH, and PHD
© 2013 Ian Russell, CC-BY-NC
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