. . . . "German astronomer and mathematician" . "1846-03-17Z"^^ . . . "1846Z"^^ . . . . . . . . "Friedrich Bessel"@en . . "1784-07-22Z"^^ . . . . "Friedrich Wilhelm Bessel (German: [\u02C8b\u025Bs\u0259l]; 22 July 1784 \u2013 17 March 1846) was a German astronomer, mathematician, physicist and geodesist. He was the first astronomer who determined reliable values for the distance from the sun to another star by the method of parallax. A special type of mathematical functions were named Bessel functions after Bessel's death, though they had originally been discovered by Daniel Bernoulli."@en . "Bessel, Friedrich"@en . . "1784Z"^^ .