How do we calculate or determine the distances to stars? What units do we use and what are the limitations (if any) of the method used for such calculations?© BrainMass Inc. brainmass.com October 25, 2018, 12:45 am ad1c9bdddf
Generally we use parallax to determine such things (meaning we use angles and simple Pythagorean math with really big numbers and very small angles), although a star's position relative to our orbital plane effects the ability to do so. Simply put, we plot angles while observing from two opposing points in Earth's orbit around the sun and use the line described by Earth's 2 points as the baseline for a triangle. Normally the ...
Brief discussion on the measure of distances to stars in our galaxy
Four Layers in Distance-Measurement Ladder
Can I get help with describing the four layers in the distance-measurement ladder involved in determining the distance to a galaxy lying 5 Mpc away?View Full Posting Details