With the Celestron StarSense Explorer LT 114AZ 114mm f/9 AZ Reflector Telescope, exploring the wonders of the universe is as simple as 1-2-3: 1. Dock your smartphone 2. Launch the StarSense Explorer smartphone app 3. Observe the moon, planets, stars, and more This innovative integration of smartphone and telescope offers beginner astronomers a fast and (more importantly) easy way to discover what's up in the night sky and where to view it. Utilizing similar alignment technology that satellites use when they move out of position, the StarSense Explorer app uses your phone's camera to stream a constant series of images and compare them to an internal database to identify the starfield and determine its location.