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Why do stars twinkle?...

Why do stars twinkle?

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Stars twinkle because they are so far away from Earth that, even through large telescopes, they appear only as pinpoints. And it.s easy for Earth.s atmosphere to disturb the pinpoint light of a star. The light from these little disks is also refracted by Earth.s atmosphere, as it travels toward our eyes.
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Assertion : The stars twinkle while the planets do not. Reason : The stars are much bigger in size than the planets.