The truth is out there; controlling your Celestron Astro Fi 90mm Refractor Telescope via integrated Wi-Fi and the free Celestron SkyPortal app for your Apple or Android mobile phone or tablet and its 90mm refractor, who knows, you might just find it. Getting started by calculating your position is easy; just centre any three bright stars in the eyepiece and thanks to the Celestron Astro Fi 90mm's SkyAlign technology, it will do the rest. You can then go on a Sky Tour of the best celestial objects to view, based on your exact time and location. Handily, Celestron's SkyPortal app provides you with a 100% wireless experience; you no longer require a traditional telescope hand control unit. Just point your smart device up to an object in the night sky that you'd like to view, such as the moon, planets or nebulae, tap the screen and the Astro Fi Telescope will lock on to the target, while your screen displays information. The telescope's helpful accessory tray holds two 1.25” eyepieces and has a rubber-lined area for a smart phone or small tablet. Features: Aperture: 90mm Focal length: 910mm Focal ratio: 10.1 Magnification (eye piece one): 36x Magnification (eye piece two): 91x Built-in local Wi-Fi for a guaranteed wireless connection to your smart device, even in areas without Wi-Fi or network coverage Fully coated glass optics for clear, crisp images Aluminium tripod for sturdy support Single Fork Arm Altazimuth mount Database contains over 120,000 objects Accessories included: a StarPointer finderscope, battery pack, 2 Kellner eyepieces and mirror star diagonal for more comfortable viewing