Orion and Horsehead Nebula in Ha.
QSI 683wsg Camera and Borg 55 FL telescope at f/3.6. AP 900 mount. SX Loadstar autoguiding camera. Astrodon 3 Nm Ha filter.
44 X 15 min Ha. The higher-res Barnard 33 was acquired with my Takahashi FSQ 85 and .73X Reducer.
Sensor temp @ -20 deg. Frames acquired with MaxIm DL 6, calibrated in CCD Stack2, and processed using PixInsight.
Stardust Ranch, Okeechobee FL