Regiomontanus
(1436–1476) German astronomer and mathematician
Regiomontanus, as befitted a Renaissance humanist, changed his name, Johann Müller, for a Latin version of the name of his home town Königsberg (now Kaliningrad in Russia). His father was a miller. He was educated at Leipzig and Vienna where he was a pupil of Georg von Purbach. One of the ambitions of Purbach had been to produce a good text of Ptolemy's Almagest based on the original Greek rather than translations from Arabic at third or fourth hand. He had intended to go to Italy in quest of manuscripts of Ptolemy and other ancient scientists with the great Greek scholar Cardinal Bessarion. The death of Purbach in 1461 allowed Regiomontanus to take his place and spend six years in Italy searching for, translating, and editing manuscripts. After his return he settled in Nuremberg where his wealthy benefactor, Bernard Walther, built him an observatory and provided him with instruments. In 1475 he was called to Rome by the pope, Sixtus IV, to help in the reform of the calendar but died of the plague (or, possibly, poison) in 1476.
Regiomontanus was one of the key figures of 15th-century science. In the 1460s he wrote De triangulis (On Triangles), a work not printed until 1533 but that was, together with Tabulae directionum (1475; Tables of Direction), the main channel for the introduction of modern trigonometry into Europe. In the latter work he broke away from the ancient tradition of chords and instead gave tables of sines for every minute and tangents for every degree.

Scientists. . 2011.

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  • Regiomontanus —   [lateinisch »Königsberger«], eigentlich Johannes Mụ̈ller, Mathematiker und Astronom, * Unfinden (heute zu Königsberg i. Bayern) 6. 6. 1436, ✝ Rom 8. 7. 1476. Regiomontanus war Schüler G. Peurbachs in Wien, 1457 wurde er dort Mitglied der… …   Universal-Lexikon

  • Regiomontānus — Regiomontānus, Johann (eigentlich Müller, auch Molitor od. Kungsperg, Johannes Germanus u. Joh. Francus), geb. 6. Juni 1456 zu Königsberg in Franken, studirte seit 1448 in Leipzig, seit 1451 in Wien unter G. Peurbach Mathematik u. zog 1461 mit… …   Pierer's Universal-Lexikon

  • Regiomontānus — Regiomontānus, eigentlich Johannes Müller, Mathematiker und Astronom, geb. 6. Juni 1436 in Unsind bei Königsberg in Franken (daher sein Name: R. oder »Königisberger«, Meister Johannes Künigsberger), gest. 6. Juli 1476 in Rom, studierte unter… …   Meyers Großes Konversations-Lexikon

  • Regiomontanus — Regiomontānus, eigentlich Joh. Müller, Mathematiker, geb. 6. Juni 1436 zu Königsberg in Franken, lehrte in Wien, ward 1475 Bischof von Regensburg und von Papst Sixtus IV. wegen der Kalenderreform nach Rom berufen, gest. das. 6. Juli 1476;… …   Kleines Konversations-Lexikon

  • Regiomontanus — d.h. der Königsberger, nannte sich der um Mathematik u. Astronomie hochverdiente Joh. Müller, geb. 1436 zu Unsind bei Königsberg in Sachsen Meiningen, welcher zu Leipzig und dann zu Wien bei dem berühmten Peurbach neben der Theologie Mathematik… …   Herders Conversations-Lexikon

  • Regiomontanus — (Johann Müller, connu sous le nom lat. de) (1436 1476) astronome allemand. Il détermina le parcours des comètes …   Encyclopédie Universelle

  • REGIOMONTANUS — celebris Astronomus, (cuius nomen Iohannes Mullerus fuit,) Regiomonte oriundus, in Franconia. Philosophiam Lipsiae didicit, dein Viennae, sub Georgio Purbachio, Mathematicis studiisincubuit, tanto cum successu, ut illi mortuo Professor… …   Hofmann J. Lexicon universale

  • Regiomontanus — Infobox Scientist box width = 300px name = Regiomontanus image width = 150px caption = Regiomontanus birth date = June 6, 1436 birth place = Unfinden death date = July 6, 1476 death place = residence = citizenship = nationality = German ethnicity …   Wikipedia

  • Regiomontanus — Johannes Regiomontanus Camillus Johann(es) Müller aus Königsberg (* 6. Juni 1436 im unterfränkischen Königsberg; † 6. Juli 1476 in Rom), kurz Hans Müller, latinisiert Johannes Molitor(is), später Regiomontanus (Königsberger), war ein… …   Deutsch Wikipedia

  • Regiomontanus — Pour les articles homonymes, voir Müller. Regiomontanus Naissance 6 juin 1436 Unfinden, près de Kö …   Wikipédia en Français

  • Regiomontanus — /ree jee oh mon tay neuhs, tah , rej ee /; Ger. /rdday gee oh mohn tah noos/, n. See Müller, Johann. * * * ▪ German mathematician Latin name of  Johannes Müller von Königsberg  born June 6, 1436, Königsberg, archbishopric of Mainz [Germany] died… …   Universalium

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