SimSolar - Solar System Simulator for Windows. Planet labels and orbits can be activated for easier understanding. Includes simple display and controls, speed control, tilt and rotation options for easy viewing, earth centered mode, options for scaled planet and orbit sizes, and over 150 years of range. Registered version includes moon phase display, planet images, planet information, alignment finder, and a Galilean Moons of Jupiter simulator.
License: Free to try, $17.95 to buy