What is stellar parallax and how is it measured?

1 Answer

stellar parallax is a method of finding.the distance to nearby stars.

Explanation:

Earth moves about 300 million kilometers in one year. This is taken ans base and trigonometry is used to find distances to stars. distance in parsecs= 1/P where p is the parallax angle The apparent shift in position of stars is measured and angle p is the parallax. .enter image source here
picture credit hyperphysics phy astr edu.