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Bessel, Friedrich Wilhelm


Mathematician and astronomer, born in Minden, Germany. In 1810 he was appointed director of the observatory and professor at Königsberg. He catalogued stars, predicted a planet beyond Uranus as well as the existence of dark stars, investigated Johann Kepler's problem of heliocentricity, and systematized the mathematical functions involved, which now bear his name.

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AND Reference Data Ltd.,Oxford, UK.

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