Friedrich Bessel
German astronomer and mathematician · Germany · Scientists · Lived 1784 to 1846 · aged 61
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Something wrong?He cracked what no one had before: the true distance to a star beyond the Sun. The parallax method had waited centuries for someone careful enough to pull it off.
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Friedrich Wilhelm Bessel (1839 painting)
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Bessel, Friedrich Wilhelm - Tabulae Regiomontanae reductionum observationum astronomicarum ab anno 1750 usque ad annum 1850 computatae, 1830 - BEIC 753362
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Friedrich Wilhelm Bessel Familie.um1843Awards
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Friedrich Wilhelm Bessel was born on 22 July 1784 in Germany and trained himself across astronomy, mathematics, physics, and geodesy. He became the first astronomer to determine reliable stellar distance using parallax - a geometric feat that had eluded predecessors for generations. Along the way he systematically studied a class of mathematical functions so fundamental they now carry his name: Bessel functions. He died on 17 March 1846, having opened the door to measuring the true scale of the cosmos.
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