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Use "parallactic" in a sentence
"There is also a "parallactic" libration, depending on the earth's rotation; and a species of nodding movement -- the "libration in latitude" -- is produced by the inclination of the moon's axis to her orbit, and by her changes of position with regard to the terrestrial equator."
"Four hundred years ago, he realized that if Copernicus was right—that the Earth orbits the Sun—they could show it by observing the 'parallactic motion' of the nearest stars."
"The team plans to use parallactic motion again in the future."