When you start you will see a big yellow circle, that is the sun. You can move around using the arrow keys. If you zoom out using the slider in the top right or the 'I' key (zoom in) and the 'O' key (zoom out) for fine tuning. You can also press the 'Z key to enter a zoom value. If you press the 'F' key a prompt will come up asking you what you want to focus on, you can type and of the PLANETS (not moons) such as Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Eris and Ceres (I included the last three just for fun). Press the 'Q' key to escape from a focus view.
All the orbit information was taken from Wikipedia. All distances are to scale (1 pix = 100,000 km). All sizes are (almost) to scale. All orbital periods are to scale as well. As you zoom out, the sizes of the planets get less and less to scale. If you zoom in on the sun, once you get to about zoom level 1.55 it stops zooming because of the size of the sprite. 4/17/15: Initial Project shared, including all eight planets, Pluto, the moon, the four main moons of Jupiter (Io, Europa, Ganymede and Callisto) and Saturn's moon Titan. 4/18/15: Added Asteroid belt and Kuiper belt, the Kuiper belt makes it really laggy and you should only use it on a good computer. Also added Pluto's moon Charon, Neptune's moon Triton and Mars' moons Phobos and Deimos. I also added Eris and Ceres
