Optics: Vixen ED81s @ f/5.2 Mount: HEQ5 synscan Pro Guiding: Skywatcher 9x50 finderscope+DMK21AU04 Camera: SBIG ST2000XM Filter Wheel: SBIG CFW9 Filters: Astronomik LRGB, Baader Ha CCD Temperature: -5 degrees Celsius Constellation: Ursa Major Location: Korinthos Exposure Red : 30 min (15x2 min) Green : 30 min (15x2 min) Blue : 30 min (15x2 min) L: 118 min (59x2 min) Ha: 20 min (2x10 min) Binning: 1x1(R,G,B,L,Ha) Calibration: Darks, Flats, Bias Software: Skyx, Pixinsight