How to prove that star twinkling occurs in the earth’s atmosphere?
| September 22, 2020 | Education
Flickering is caused by rapid changes in the refractive index of light due to changes in the optical density of the atmosphere along the line of sight, which is a consequence of convective processes in the lower atmosphere. It increases with an increase in the zenith distance of the star and, together with the absence of star twinkling when observed in outer space, proves the atmospheric origin of this phenomenon.
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