How stars twinkling

The change in intensity of light coming from the stars is called twinkling of stars. The twinkling of stars occurs due to atmospheric refraction of star's light. Hence, the star light reaching our eyes change continuously and stars appear to twinkle.

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Ch. Nandini 4 years, 10 months ago

When light from a distant source (a star) passes through our turbulent (moving air) atmosphere, it undergoes refraction many times. ... This is because some of the light rays reach us directly and some bends away from and toward us. It happens so fast that it gives a twinkling effect

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