M31 Andromeda Galaxy (NGC 224)
Size:178'x63'(250,000 ly dia.) Mag:3.4 Dist:2.9 mly
with M110 (left) & M32 (right)

Camera: Canon EOS 300D Digital Rebel
Lens: Sigma 70-300mm APO @ 300mm, f/6.3
Exposure: 8x10s+28x13s=7.4min @ ISO1600
Mount: ETX-90EC polar aligned
Processing: Dark, flat and bias calibration, alignment, stacking and digital development in IP 2.0.
Levels, curves, skyglow and noise removal in Photoshop CS with Neat Image and PixInsightLE.