How to find distance between objects using Parallax?

Question

How do Astronomers use it do determine distance between stars?

Explain in simple language.

Answer 1

If you take a very distant object (a galaxy, for example) that doesn't move laterally compared to the Earth, you can compare the angle between a star and that galaxy when the Earth is on one side of the Sun and 6 months later when the Earth is on the other side of the Sun. Since the Earth has moved roughly 186,000,000 million miles, you can draw the triangles with that base length and determine the distance to the star with trigonometry

Answer 2

Your eyes do it automatically. Its the same principle.
your brains knows the distance between your eyes which sees a particular point at a certain distance,An isoceles triangle is formed.;knowing the angle and the base distance of the triangle your brains using trigonometry calculates the distance . This is how your eyes are able to judge distance.This is what is called paralax.
Astronomy use the same principle. by knowing the base distance of the triangle which is the Earth diameter and the angle of observation to a star ,the distance is trigonometrically calculated. It called triangulation.

Answer 3

in two different times,like spring and autumn,you capture picture from a near object,its position in the sky changes,because the Earth rounds the sun
so,you have an angle that it's tg is cleared,so the distance between the Earth and sun
the distance from that object is equal to the product of the tg and the distance to the sun