What is the twinkling of stars due to?

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(B) The twinkling of stars is primarily due to the atmospheric refraction of starlight. As starlight enters the Earth's atmosphere,it undergoes contin

Vedclass · Accepted Answer

Refraction of light

Vedclass · Answer

(B) The twinkling of stars is primarily due to the atmospheric refraction of starlight. As starlight enters the Earth's atmosphere,it undergoes continuous refraction due to the changing refractive index of the different layers of the atmosphere. This causes the apparent position of the star to fluctuate slightly and its brightness to change,resulting in the twinkling effect.

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