Object: M31 "The Andromeda Galaxy " - Author: Samuele Gasparini (www.astrobook.it) - Equipment: Refractor Skywatcher 80Ed with flattener/reducer 0.85X and camera Moravian G2-4000; LRGB Baader Filters. - Exposure Times: Sum of 90 min L + 60 min for each RGB channels + 60 min Halpha all in Bin 1x1. - Processing with Pixinsight e Ps Cs3. Location: "Torre Doganiera Farm" Pievescola (Tuscany-Italy)