![]() With highly-reflective aluminum and SiO 2 (quartz) mirror coatings, light loss is limited so you can make detailed observations of the Moon, view planets and distant nebulae, and get great wide-field views of the sky for comet watching and asteroid hunting. Optically, the scope sports a large 130mm aperture and a short 650mm focal length to produce a fast focal ratio that can resolve deep sky objects that smaller refractor-style scopes cannot, such as splitting binary stars or separating star clusters. Resolution (Dawes): 0.Celestron's Astro Fi 130mm f/5 Reflector Telescope utilizes an integrated antenna to emit a local WiFi signal so you can control the mount via Android and iOS smartphones and tablets running their free SkyPortal app.Resolution (Rayleigh): 1.07 arc seconds arc seconds.Accessory Tray: Includes rubberized smartphone or tablet holder.Focal Length of Eyepiece 2 (mm): 10 mm (0.39 in).Focal Length of Eyepiece 1 (mm): 25 mm (0.98 in). ![]() ![]()
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