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Bessel
(redirected from Bessel, Friedrich Wilhelm)

    Also found in: Encyclopedia, Wikipedia, Hutchinson 0.12 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.
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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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