Almagest


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Almagest:

see PtolemyPtolemy
(Claudius Ptolemaeus), fl. 2d cent. A.D., celebrated Greco-Egyptian mathematician, astronomer, and geographer. He made his observations in Alexandria and was the last great astronomer of ancient times.
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Almagest

(al -mă-jest) (Arabic: the Greatest) an astronomical work compiled by Ptolemy of Alexandria in about ad 140. It was translated from the original Greek into Arabic in the 9th century and became known in Europe when it was translated from Arabic into Latin in the late 12th century. Its 13 volumes cover the whole of astronomy as conceived in ancient times, with a detailed description of the Ptolemaic system of the Solar System. It also included a star catalog giving positions and magnitudes (from 1 to 6) of 1022 stars. This catalog was based mainly on the one produced in the 2nd century bc by Hipparchus of Nicaea.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
Al Birjandi's "Sharh" of Tusi's epochal work, which was completed in 1508CE, showed how the master reevaluated Ptolemy's "Almagest" and Euclid's "Elements".
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Which Greek-Roman citizen of Egypt wrote Almagest and Geography?
Claudius Ptolemy's Tetrabiblos and Almagest (Second Century, AD) were the standards of the day, but his planetary positions not accurate.
Claudius Ptolemy is rightly remembered for his scientific contributions, and his Mathematical Composition--hereafter referred to by its more common title, the Almagest, from its Latinized Arabic moniker--stands as one of the most influential texts in the history of science.
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