describe the parallax method to find the distance of distant star from earth class 11
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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
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The method is based on measuring two angles and the included side of a triangle formed by the star, Earth on one side of its orbit and Earth six months later on the other side of its orbit. ... The distance d is measured in parsecs and the parallax angle p is measured in arcseconds.
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