Atul came to know from his father that pole star is the only star in the sky that does not move as the night passes. But his father did not tell him the reason. Can you help him?

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Solution

Explanation,
Stars appear to be moving because of Earth's rotation.
But, the pole star is located in the direction of Earth's axis.
So, there is no effect of rotation on the angle of vision between Earth and the pole star.
Pole star is located in the direction of the axis of Earth.
Hence, it does not move as the night passes.

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