With the Celestron StarSense Explorer LT 80AZ Smartphone App-Enabled Refractor Telescope locating objects has never been easier, faster, or more accurate. Within minutes of setting up the telescope, you can be navigating the sky with confidence. Place your phone in the unique StarSense dock and launch the StarSense Explorer app. After aligning your phone to the telescope's optics (a quick, 2-minute procedure), the StarSense Explorer generates a list of celestial objects currently visible. Make your selection and arrows appear onscreen, guiding you as you to move the telescope. When the object is ready to view, the bullseye turns green. The StarSense Explorer works with most modern smartphones, including iPhone 6 and up and most devices running Android 7.1.2 or later manufactured since 2016. StarSense Explorer uses patent-pending technology and your smartphone to determine exactly where the telescope is pointed in the night sky. A Lost in Space Algorithm (LISA), like the ones satellites use in orbit to correctly reorient themselves, helps the app match star patterns it detects overhead to its internal database. StarSense Explorer LT has a simple altazimuth mount which makes it easy to move the telescope to find your target. A slow-motion altitude adjustment knob helps you fine tune the telescope's pointing position and follow targets as they appear to drift across the night sky. It's all anchored by an adjustable, full-height tripod. You can expect sharp, bright views through this 80mm refractor. Fully coated glass optics provide increased light transmission, enhancing details in celestial objects. The telescope also includes a 90-degree erect image diagonal, so you can use it during the day to view birds, wildlife, landscapes, and more. Even if you live in a light polluted city location, StarSense Explorer is advanced enough to be able to pick out Jupiter, Saturn, Venus, the Orion Nebula, double stars, and a few more of the most famous celestial objects. But if you can take the telescope to an even slightly darker location, more objects will become visible. The entire telescope kit weighs just 9.2 pounds, so it is perfectly portable and easy to bring on your next camping trip or to a remote observing site. Features - 80mm refractor optical tube - StarSense dock for your smartphone - Low powered (25mm) and high powered (10mm) eyepiece - 2x Barlow lens to double the power of each eyepiece - 90-degree erect image diagonal - StarPointer red dot finderscope, perfect for using the telescope during the day or without the StarSense Explorer app Specifications Optical Design: Refractor Aperture: 80mm Focal Length: 900mm Focal Ratio: f/11 Focal Length of Eyepiece 1: 25mm Magnification of Eyepiece 1: 36x Focal Length of Eyepiece 2: 10mm Magnification of Eyepiece 2: 90x Barlow Lens: 2x (1.25") Finderscope: StarPointer red dot finderscope Star Diagonal: Erect image 90° (1.25") Optical Tube: Aluminum Highest Useful Magnification: 189x Lowest Useful Magnification: 11x Limiting Stellar Magnitude: 12 Resolution (Rayleigh): 1.74 arc seconds Resolution (Dawes): 1.45 arc seconds Light Gathering Power (Compared to human eye): 131x Optical Coatings: Fully-Coated glass optics Optical Tube Length: 965mm (38") Optical Tube Diameter: 90mm (3.54") Mount Type: Manual Alt-Azimuth Height adjustment range (includes mount and tripod): Aluminum, 1320.8mm (52") max height Tripod Leg Diameter: 31.75mm (1.25") steel Accessory Tray: Yes Slew Speeds: Manual GPS: Uses phone's GPS Dovetail Compatibility: CG-5 Dovetail bar Power Requirements: None (Recommend PowerTank Glow to keep phone charged while using app) Alignment Procedures: Use StarSense Explorer app Software: StarSense Explorer app | SkyPortal app | Celestron Starry Night Basic Edition Software Total Kit Weight: 9.2 lbs (4.17 kg)