parallax method for mearsurment of large distance
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Parallax and Stellar Parallax. Astronomers use an effect calledparallax 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. ... The distance d is measured in parsecs and the parallax angle p ismeasured in arcseconds.
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Consider a planet or star at a far away point p from 2 different positions on the earth, ie ,A and B. Let the distance of the star from the earth be D and let β be the angle between the 2 directions viewed from A and B .This angle is called parallax angle and is calculated ,
D=B/β
D=B/β
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