text: Because it has a real slow rotation around the earth (1 rotation per revolution) as opposed to the earth around the sun (365 rotations per revolution) \n\nIt looks like its not rotating, but it is.\n\ntake something round like an orange or something, make an X on it.  try to make it go around you while still showing the X...you'll see that you'll need to rotate it slowly as you move it around you