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speckle interferometry

noun, Astronomy.
a photographic technique for clarifying the telescopic images of a star by taking short exposures of the electronic images of the star's speckle pattern and extrapolating properties of the starlight to create a more accurate composite image.
Origin of speckle interferometry
First recorded in 1965-70; interfere + -o- + -metry Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for speckle interferometry

speckle interferometry

(astronomy) a technique to increase the angular resolution of telescopes that are impaired by atmospheric turbulence, in which the information from a number of exposures of very short duration is combined
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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