It doesn't get any easier than this - Celestron has revolutionized stargazing. With the Celestron Star Sense Explorer telescope and the fantastic app, no prior knowledge of astronomy, alignment, or Earth's rotation is needed. Simply set up the telescope, mount your phone, start the app, select your target, and observe. The use of these telescopes and the app is very user-friendly. First, the app is installed on the smartphone. Then, the smartphone is placed in the special holder on the telescope during observation. The smartphone's camera scans the night sky and indicates the direction in real-time with arrows showing where the telescope should be pointed.