106mm f/5 refractor, G11 Losmandy Gemini mount, SXVF-H16 camera, Ha16nm Astronomik filter.
12x 600". Excellent transparency and low humidity.
Guiding in piggy back with 300mm f/4.5 Mak Rubinar + SXVF-M7
No darks. Bias and flats only.
Align and stack with AA4.0, iteratives Curves in PS CS3, enhancing contrast with Curves.
Lorient, 22 June 2009