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Bessel
see synonyms of besselNoun
1. bessel, friedrich wilhelm bessel
German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846)
WordNet Lexical Database for English. Princeton University. 2010.
Bessel
see synonyms of besselnoun
Friedrich Wilhelm (ˈfriːdrɪç ˈvɪlhɛlm). 1784–1846, German astronomer and mathematician. He made the first authenticated measurement of a star's distance (1841) and systematized a series of mathematical functions used in physics
Collins English Dictionary. Copyright © HarperCollins Publishers
Bessel
see synonyms of bessel Prussian astronomer who recalculated the orbit of Halley's comet (1804), used parallax to measure the distance from Earth to the twin star 61 Cygni (1838), and developed a class of mathematical functions based on his study of planetary perturbation.
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