Question

Why might astronomers measure the parallax of stars?

Answer 1

Astronomers use an effect called parallax to measure distances to nearby stars. Parallax is the apparent displacement of an object because of a change in the observer's point of view.

Answer 2

Astronomers measure the parallax of stars to measure the distance of the earth from other stars.

Step-by-step explanation:

• Parallax is the displacement or difference of an object's position when measured from two different places or positions.
• As we know stars and our own earth are in continues motion.
• So it is difficult to measure the difference between stars and earth.
• Parallax is measured through an angle which is measured from a nearby star and is the angle between earth position at one time and at after six months.