Finally started processing some of the photos shot during my last summer holiday (2013) at the Tivoli Southern Sky guest farm. Just for fun I made a quick stack of M31. Although M31 was only at 15 degrees altitude, this stack of 5 x 3 min. at ISO1250 shows some real potential.

Canon EOS 5Dii, FSQ106 (f=530mm), 5x3m, ISO1250, Fornax 51 mount.
Stacking and digital development was done in ImagesPlus,
gradient removal with Fitswork4 and finishing touches with PaintShopPro.