Information AboutAlfraganus |
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He was involved in the measurement of the diameter of the Earth together with a team of scientists under the patronage of Al-Ma'mūn in Baghdad . His textbook ''Elements of astronomy on the celestial motions'', written about 833 CE, was a competent descriptive summary of Ptolemy ’s Almagest . Its was translated into Latin in the twelfth century and remained very popular in Europe until the time of Regiomontanus . In the seventeenth century the Dutch orientalist Jacob Golius published the Arabic text on the basis of a manuscript he had acquired in the Near East, with a new Latin translation and extensive notes. Later he moved to Cairo , where he composed a very important treatise on the Astrolabe around 856 CE. There he also supervised the construction of the large Nilometer on the island of al-Rawda (in Old Cairo) in the year 861. The Alfraganus Crater on the Moon was named after him. Bibliography
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