why does stars twinkle but planets do not
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Light from stars crosses a very long distance to reach us and also passes through Earth’s atmosphere, which vary in temperature and density. Our atmosphere is very turbulent, with streams and eddies forming, churning around, and dispersing all the time. Every layer of Earth’s atmosphere has air moving in different directions at different intensities. When light from stars passes through the atmosphere, it is bent due to refraction, which is why stars seem to twinkle when we stare at them. If viewed from outer space, you would not see the stars twinkling.
Light from stars crosses a very long distance to reach us and also passes through Earth’s atmosphere, which vary in temperature and density. Our atmosphere is very turbulent, with streams and eddies forming, churning around, and dispersing all the time. Every layer of Earth’s atmosphere has air moving in different directions at different intensities. When light from stars passes through the atmosphere, it is bent due to refraction, which is why stars seem to twinkle when we stare at them. If viewed from outer space, you would not see the stars twinkling.
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We know that stars are a point sized sources of light and hence the light from them is refracted in the atmosphere, resulting in twinkling whereas the planets are a group of sources of light and hence the refraction of all the light rays coming from the the planets cancel out and results in a continuous flow of light and no twinkling.
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