The apparent position of a star, due to atmospheric refraction, is
Question
The apparent position of a star, due to atmospheric refraction, is
perfectly fixed and never changes
not stationary, but keeps changing slightly since atmospheric conditions are not stationary
always identical to its true position
only relevant during the daytime
Answer
not stationary, but keeps changing slightly since atmospheric conditions are not stationary
Detailed Explanation
The chapter states the apparent position of a star keeps changing slightly because the physical conditions of the atmosphere are not stationary. — Examisthan.com