Apparent motion of stars: East-to-west drift explained. Why do stars seem to move from east to west across the sky to an observer on Earth? Choose the correct option.

Q: Apparent motion of stars: East-to-west drift explained. Why do stars seem to move from east to west across the sky to an observer on Earth? Choose the correct option.

Concept Earth's rotation is west → east; this makes the celestial sphere appear to move east → west. Final Answer Because Earth rotates from west to east

Difficulty: Easy

Because Earth rotates from west to east
Because stars orbit Earth once per day
Due to Earth's revolution around the Sun
Due to atmospheric refraction

Correct Answer: Because Earth rotates from west to east

Explanation:

Concept

Earth's rotation is west → east; this makes the celestial sphere appear to move east → west.

Final Answer
Because Earth rotates from west to east

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