1) Nur ad-Din al-Bitruji (Alpetragius) (d.1204) was a Muslim astronomer and Maliki Judge from al-Andalus (Spain).
He was the first astronomer to present a non-Ptolemaic astronomical system as an alternative to Ptolemy's models, with the planets borne by geocentric spheres.++
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He was the first astronomer to present a non-Ptolemaic astronomical system as an alternative to Ptolemy's models, with the planets borne by geocentric spheres.++
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2) Al-Bitruji's alternative system spread through most of Europe during the 13thCE, with debates and refutations of his ideas continued up to the 16th century.
Copernicus cited his system in the De revolutionibus while discussing theories of the order of the inferior planets. +
Copernicus cited his system in the De revolutionibus while discussing theories of the order of the inferior planets. +
3) Al-Bitruji wrote Kitāb al-Hayʾah ( كتاب الهيئة), It was well known in Europe between the 13th and the 16th CE's, and was regarded as a valid alternative to Ptolemy's Almagest in scholastic circles.
This work was translated into Latin by Michael Scot in 1217.
#Islam
This work was translated into Latin by Michael Scot in 1217.
#Islam
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