Question

Why do stars seem higher than they actually are?
(class 10 CBSE SAMPLE PAPER 2017-18 SCIENCE)

Answer 1

Stars appear higher than the actual position due to the refraction of light. The starlight suffers refraction continuously on entering the earth's atmosphere.

Light from the star after refraction bend towards the normal every time and hence appears to be coming from  S’ although the star is actually at S

Hence, it appears higher than actually it is.

HOPE THIS WILL HELP YOU....

Answer 2

Star are the self illuminous object. The star gives light which travels through a rarer medium to a denser medium as Earth atmosphere and it may have many deflection, as the light rays don't come to us at equal interval of time and it's gets bended from its original path the stars look higher than the actually are.