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why do stars appear to twinkle??

Asked by niyati mehta 29th December 2011, 8:53 PM
Answered by Expert
Answer:
Stars do not really twinkle, they just appear to twinkle when seen from the surface of Earth. The stars twinkle in the night sky because of the effects of our atmosphere. When starlight enters our atmosphere it is affected by winds in the atmosphere and by areas with different temperatures and densities. This causes the light from the star to twinkle when seen from the ground due to atmospheric refraction.
Answered by Expert 29th December 2011, 9:31 PM
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