What is a rotation of a planet?

Question

im gonna try to make a book about space please help me!

Answer 1

*laughing*

You want to write a book about space and you don't even know what rotation means! HAHAHAHA!

The planet rotating on its axis!

Answer 2

The rotation of a planet is the time it takes for a planet to "spin" 360 degrees around.  

Answer 3

I dont think that you are the person to write a book about space if you have no idea how something this simple works....here is your answer though,,,,

As a planet rotates around its axis, the stars appear to move around a projection of the planet's axis into space. The time required for the stars to move once around their paths is called the sidereal period of rotation, or the rotation period of the planet.

      While the planet rotates, it is also moving around the Sun. This changes the apparent position of the Sun among the stars, and as a result, it does not move around the sky in quite the same period of time that the stars do.