Question

state the reason of twinkling the star and changing its position

Answer 1

Heya friend.......

$<b>This is due to the effect known as atmospheric refraction.</b>$

$<bold>Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height. This refraction is due to the velocity of light through air, decreasing with increased density.</bold>$



$Hope this helps###$