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The Constellations
The astronomer ‘Abd al-Rahman ibn ‘Umar al-Sufi, commonly known as al-Sufi, was born in Persia (present-day Iran) in 903 A.D. and died in 986. He worked in Isfahan and in Baghdad, and is known for his translation from Greek into Arabic of the Almagest by the ancient astronomer Ptolemy. Al-Sufi’s most famous work is Kitab suwar al-kawakib (Book of the constellations of the fixed stars), which he published around 964. In this work, al-Sufi describes the 48 constellations that were established by Ptolemy and adds criticisms and corrections ...
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An Arabic Translation of the Astronomical Tables of Ulugh Beg
This manuscript contains a 15th–16th century translation from Persian into Arabic by Yaḥyā ibn Alī al-Rifā‘ī of the introduction of the celebrated zīj (astronomical tables or records of daily occurrences) by Ulugh Beg (1394–1449). In the introduction to his work, al-Rifā‘ī states that he undertook the project at the behest of Egyptian astronomer Shams al-Dīn Muḥammad ibn Abū al-Fatḥ al-Ṣūf ī al-Miṣrī (died circa 1494), who was involved in studying and revising Ulugh Beg's zīj for Cairo's geographical coordinates. The present manuscript copy of ...
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