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The Astro Fi 102mm Maksutov Cassegrain Telescope is a fully featured telescope that can be controlled with your smart phone or tablet using the free Celestron SkyPortal app. Celestrons SkyPortal app replaces the traditional telescope hand control for a 100% wireless experience. Just hold your smart device up to the night sky. When you find an object youd like to view, tap the screen. Your Astro Fi telescope automatically slews to the object, while the screen displays information about it. The Astro Fi 102mm Maksutov Cassegrain Telescope creates its own wireless connection, so it can communicate with your device even in remote locations where WiFi or cellular networks arent available. Getting ready to observe is quick and painless thanks to Celestrons award winning SkyAlign technology. Center any three bright objects in the eyepiece, and your telescope calculates its position. You can even generate a Sky Tour of all the best celestial objects to view based on your exact time and location.SpecificationsOptical Deisgn Maksutov CassegrainAperture102 mm Focal Length1325 mm Focal Ratio13Focal Length of Eyepiece 1 mm 25 mm Magnification of Eyepiece 1 53xFocal Length of Eyepiece 2 mm 10 mm Magnification of Eyepiece 2132xFinderscopeStarPointerStar Diagonal 1.25Mount Type Single Fork Arm Computerized AltazimuthAccessory TrayIncludes rubberized smartphone or tablet holderTripodAluminumHighest Useful Magnification241xLowest Useful Magnification15xLimiting Stellar Magnitude12.5Resolution Rayleigh1.37 arc seconds arc secondsResolution Dawes1.14 arc seconds arc secondsLight Gathering Power Compared to human eye212xOptical Coatings Fully CoatedSlew SpeedsUp to 3 degsecondTracking RatesSidereal, Solar, and LunarAlignment ProceduresSkyAlign, 3 Star Align, Solar System AlignCommunication Ports Aux port for optional hand controlDatabase Over 120,000 objects including 220 of the best deep sky and solar system objects
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