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Bessel

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
Bes·sel  (bsl), Friedrich Wilhelm 1784-1846.
Prussian astronomer who recalculated the orbit of Halley's comet (1804), verified by parallax 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.
Bessel [ˈbɛsəl]
n
(Biographies / Bessel, Friedrich Wilhelm (1784-1846) M, German, SCIENCE: astronomer, SCIENCE: mathematician) 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
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Noun1.Bessel - German mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846)
Friedrich Wilhelm Bessel


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17) in terms of zero order Bessel functions of the first ([Y.
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Richard Bessel and Dirk Schumann (Cambridge: The German Historical Institute, Washington, DC and Cambridge University Press, 2003.
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Senaratne C, Zhang J, Baker M, Bessel CA, Rolison DR.
Analysis of the biological and chemical reactivity of zeolite-based ... by Dutta, Prabir K. / Environmental Health Perspectives
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