Question

What is meant by parallax and parallaxes angle? How can we find the distance of the moon (or any
planet) by parallax method?

Answer 1

Answer:

The parallax formula states that the distance to a star is equal to 1 divided by the parallax angle, p , where p is measured in arc-seconds, and d is parsecs.

• Astronomers estimate the distance of nearby objects in space by using a method called stellar parallax, or trigonometric parallax. Simply put, they measure a star's apparent movement against the background of more distant stars as Earth revolves around the sun.Parallax is the name given to change in position of an objext with respect to the background,when the objext is seen feom different position. parallactic angle is the angle made by the arc of length of 1 AU. You can find the distance by the formula distance = angle/Radius of moon