A quality planetarium designed especially for elementary students, this model lets you operate the hand-driven system to rotate the Earth around the Sun (the Moon model is manually operated). The Illuminated model features a lighted Sun that focuses a beam of light at Earth as it is rotated. Overall size is 56 cm x 19 cm x 30 cm; the Illuminated model operates on 120V, AC. Includes: instructions and a lesson book (each model).