M81
Image by Massimiliano Baravelli
Optics: 140 mm f/7 TEC 140APO Refractor
Guide: 105 mm f5,8 Astro-Physics Traveler Refractor
Mount: Astro-Physics GTO900
Camera: Starlight Xpress SXV-H9M w/ Guide Head
Filter Wheel: FLI 8 Positions Filters: Astronomik LRGB set
Dates/Times: 16/03/2007
Location: Medelana(BO)
FWHM: 1.96"
Exposure Details: LRGB = L 120 min: RGB 32.7:30:43.2 min Bin 2*2
Acquisition: MaxIm DL/CCD 4, TheSky6
Processing: MaximDL/CCD 4, Photoshop CS2