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Created with Fabric.js 1.4.5 Parallax By Bruno Navaresse double click to changethis text! Drag a cornerto scale proportionally. par·al·laxˈparəˌlaks/nounthe effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g., through the viewfinder and the lens of a camera.the angular amount of parallax in a particular case, especially that of a star viewed from different points in the earth's orbit.plural noun: parallaxes The equation to find distance using parallax is :d = 1/pd is distance in parsecs (3.3 light years)p is the angle of parallax (measured in arcseconds) Measurement of annual parallax was the first reliable way to determine the distances to the closest stars. The first successful measurements of stellar parallax were made by Friedrich Bessel in 1838 for the star 61 Cygni using a heliometer. Stellar parallax was first used successfully by Friedrich Besselin 1838 to measure the distanceto star Cygni using a heliometer. Parallax is a form of measurement used to findhow far away stars or planets are. It is similarto holding your thumb up in front of you andclosing one eye, and then switching the closedeye. Using the angles created by this change, scientists are able to determine the distance tothe object. If you want to see how parallax works,close an eye and put your thumb up in front of you.Then, change which eye is closed. You'll notice theclose your thumb is to your face, the more it willappear to move. This is what scientists use to determine distances to stars.
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