How do astronomers use the stellar parallax to measure the distance to the stars?

Answer 1

Earth travels 300 million kilometers in one year around Sun.This is taken as base b. enter image source here

With the measurement of angle alpha, one can calculate distance (please refer to the picture, which is credited to Starchild GSFC Nasa with b=300 million kilometers).

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Owen Atkinson

Star parallax is a technique used by astronomers to measure the distance to stars. It involves observing the apparent shift in the position of nearby stars relative to more distant ones as the Earth orbits the Sun. The method works best for stars that are relatively close to Earth because astronomers can calculate the distance to the star using trigonometry by measuring the angle of this shift and knowing the distance between the Sun and the Earth.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.