What do you think is the reference point for earth rotation​

Earth's Rotation

Imagine a line passing through the center of Earth that goes through both the North Pole and the South Pole. This imaginary line is called an axis. Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation.

Explanation:

please brainleist my answer

answer; i believe that the correct answer is (the explosion of a nearby star(supernova);