Why do star twinkle?
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Stars are very far from us whatever we see is very small but are very large in size in universe...... are twinkling because of their size actually they are not twinkling but as they are so far it seems to be twinkling........... Hope heplful
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Explanation:
Stars twinkle due to atmospheric refraction of starlight. As the stars are very far away, they behave as almost point sources of light. A son account of atmospheric refraction, the path of rays of light coming from the star goes on varying slightly, the apparent position of the star fluctuates and the amount of starlight entering the eye flickers. So, sometimes, the star appears brighter and at some other time, fainter. Thus, the stars twinkle.
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