Rotate the Sun

Let's rotate our sun and planets in a counter clockwise direction.

Select the free transform tool.

>Insert >Keyframe

A keyframe is a new frame for the movie. It copies the previous frame. You can change it and it will give the illusion of movement.

Now, with the new keyframe selected, move the sun 90 degrees in the counterclockwise direction. Insert four keyframes to make the sun move 360 degrees. Save your document.