Stars appear to move in a circular path across the sky, from east to west. This apparent motion is due to the Earth's rotation on its axis.

Here's a breakdown:

* Earth's Rotation: The Earth spins on its axis from west to east.

* Observer's Perspective: As we stand on Earth and look up, the stars seem to move in the opposite direction, from east to west. This is similar to how objects outside a moving car appear to move backwards.

Note: The stars themselves are not actually moving across the sky. Their apparent motion is an illusion caused by our planet's rotation.