Why are stars twinkling in night?
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Explanation:
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
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When the light coming from A Star enters the earth atmosphere it undergoes refraction due to the varying optical densities of air at various altitudes the atmosphere is continuously changing the continuously changing atmosphere refracts the light from the stars by different amounts from one moment to the next.
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