Stellar parallax provides concrete proof that the
A) Earth rotates on its axis
B) Earth is roughly spherical
C) Earth moves around the Sun
D) Moon moves around the Earth

Question

Quizplus · Accepted Answer

Stellar parallax is the apparent shift in the position of a star when viewed from two different points. By observing the change in position of nearby stars from different points in Earth's orbit, astronomers can determine the distance between the stars and the Earth. This provides concrete proof that the Earth moves around the Sun, as the shift in position of the star is caused by the observer's change in position on Earth as it moves along its orbit.

Stellar Parallax Provides Concrete Proof That the