Question

why does pole star appears stationary

Answer 1

Hii..

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HERE IS YOUR ANSWER..

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The pole star appears stationary because of its positioning i.e. it is close to the imaginary line which is Earth's axis and can easily be seen when Earth performs its rotation.

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Answer 2

Answer:

A pole star or polar star is a star, preferably bright, closely aligned to the axis of rotation of an astronomical object.

Currently, Earth's pole stars are Polaris (Alpha Ursae Minoris), a magnitude 2 star aligned approximately with its northern axis, and a pre-eminent star in celestial navigation, and Polaris Australis (Sigma Octantis), a much dimmer star. A couple thousand years ago, Kochab and Pherkad were twin northern pole stars, though neither was as close to the pole as Polaris is now.