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Friedrich Wilhelm Bessel

parallax functions earth

Bessel, Friedrich Wilhelm (1784–1846), astronomer and mathematician. Born in Germany, Bessel made the first authentic measurement of a star's distance from the earth, also called a parallax. This discovery allowed astronomers to document the earth's movement. Bessel also established a class of mathematical functions known as Bessel functions.

See also: Parallax.

Bessemer process [next] [back] Bessarabia

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