Bernhard Walther: Difference between revisions

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Bernard Walther (1430 in Memmingen - June 19 1504 in Nuremberg) was a German merchant, humanist and astronomer in Nuremberg, Germany.

In 1471, he worked in collaboration with Regiomontanus and helped him to build an observatory and a printing press. After the death of Regiomontanus in 1476 at Rome, Walther bought his instruments and continued the observation of planets till his death.

He introduced mechanical clocks into astronomy and was the first to correct his observations for refraction of light in the atmosphere. His observations are the most precise prior to Tycho Brahe.

The observations from Nuremberg of Regiomontanus and Walther were only published in 1544 by his pupil Johann Schöner. Copernicus had received data from Schöner prior to publication and applied them for his calculations, attributing them erroneously to Schöner.

He is the eponym of lunar crater Walther.

Authorities

• JG Doppelmayr, Hist. Nachricht von den nürnbergischen Mathematicis, p. 23 (1730)
• GA Will, Nürnbergisches Gelehrten-Lexikon, vii. 381 (1806)
• JE Montucla, Hist. des mathematiques, i. 546
• JS Bailly, Hist. de Paste. moderne, i. 319
• EF Apelt, Die Reformation der Sternkunde, p. 54
• JP von Wurzelbaur, Uranies Noricae basis astronomica (1719)
• JF Weidler, Hist. astronomiae, p. 322
• AG Kästner, Geschichte der Mathematik, ii. 324
• Mitteilungen des Vereins für die Geschichte der Stadt Nürnberger, vii. 237 (1888) (H Petz)
• R Wolf, Gesch. der Astr. p. 92, &e.

External links

• Bernard Walther from the German Wipedia - in German

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