Question

Stars appear to be slitly higher in the sky than they actually are. Why is this so?

Answer 1

This is because of refraction of light when the light enters the earths surface it ubdergoes contimous refraction and thus follows a curved a path when it reaches to our eyes its angle of incidence with the eyes becomes less than that when it hits the eyes with out any refraction 

Hence as a result we perceive as that the stars are higher but in real case they are actually close

Note that the refraction occurs because of change in temperature in atmosphere

Hope this helped u :-)

Answer 2

Answer:

refer to the above attachment

hope it helps uh :)