What is stellar parallax?
A)It is the change in the set of constellations that we see at different times of year in the evening sky.
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 daily rise and set of the stars.
D)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.

Question

Quizplus · Accepted Answer

Stellar parallax 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. This is used by astronomers to measure the distances to nearby stars.

What Is Stellar Parallax