Question

Why does the star light fluctuates when it reaches to our eyes?

Answer 1

THE REFRACTIVE INDEX of the different layers of the earth's atmosphere changes continuously the position of the image of a start changes with time.......

❤ANONYMOUS❤

Answer 2

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In simple terms, twinkling of stars is caused by the passing of light through different layers of a turbulent atmosphere. Most scintillation effects are caused by anomalous atmospheric refraction caused by small-scale fluctuations in air density usually related to temperature gradients.