What is stellar parallax?
A)It is the daily rise and set of the stars.
B)It describes the fact that stars are actually moving relative to one another,even though to our eyes the stars appear fixed in the constellations.
C)It is the slight back-and-forth shifting of star positions that occurs as we view the stars from different positions in Earth's orbit of the Sun.
D)It is the change in the set of constellations that we see at different times of year in the evening sky.

Question

Quizplus · Accepted Answer

Stellar parallax is the slight shift in the position of stars as we observe them from different vantage points in Earth's orbit around the Sun. This phenomenon is used to determine the distances to nearby stars.

What Is Stellar Parallax