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Friedrich Bessel
German astronomer, mathematician, physicist and geodesist
Years: 1784 - 1846
Friedrich Wilhelm Bessel (July 22, 1784 – March 17, 1846) is a German astronomer, mathematician, physicist and geodesist.
He is the first astronomer to determine reliable values for the distance from the sun to another star by the method of parallax.
A special type of mathematical functions ae named Bessel functions after Bessel's death, though they had originally been discovered by Daniel Bernoulli and then generaliszd by Bessel.
