Question

Do the star remain constant in the sky​

Answer 1

Answer:

yes

but we see them twinkling because their refractive index keeps on changing and because of refraction

Answer 2

Answer:

The stars are not fixed, but are constantly moving. If you factor out the daily arcing motion of the stars across the sky due to the earth's rotation, you end up with a pattern of stars that seems to never change.

hope its right......