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Ali ibn Ridwan

Ali Ibn Radwan
14th century painting of Ali Ibn Radwan (astronomical clock in St. Nicholas' Church (Stralsund)
14th century painting of Ali Ibn Radwan (astronomical clock in St. Nicholas' Church (Stralsund)
Born988
Giza, now Egypt
Died1061 (aged 73)
Baghdad, Abbasid Caliphate, now Iraq
OccupationPhysician, Astrologer, Astronomer
NationalityArab, Egyptian
Notable worksCommentator of Galen's Tetrabiblos,
Commentator of Ancient Greek Medicine,
De revolutionibus nativitatum,
Tractatus de cometarum significationibus per xii signa zodiaci,
On the Prevention of Bodily Ills in Egypt,
Detailed of Supernova SN 1006

Abu'l Hassan Ali ibn Radwan Al-Misri (Arabic: أَبُو اَلْحَسَنْ عَلِي بْنْ رَضْوَانْ بْنْ عَلِي بْنْ جَعْفَرْ اَلْمِصْرِيِّ) (c. 988 - c. 1061) was an Arab[1] of Egyptian origin who was a physician, astrologer and astronomer, born in Giza.

He was a commentator on ancient Greek medicine, and in particular on Galen; his commentary on Galen's Ars Parva was translated by Gerardo Cremonese. However, he is better known for providing the most detailed description of the supernova now known as SN 1006, the brightest stellar event in recorded history, which he observed in the year 1006.[2] This was written in a commentary on Ptolemy's work Tetrabiblos.

He was later cited by European authors as Hali, Haly, or Haly Abenrudian. According to Alistair Cameron Crombie[3] he also contributed to the theory of induction. He engaged in a celebrated polemic against another physician, Ibn Butlan of Baghdad.[4]

  1. ^ Samy Swayd (10 March 2015). Historical Dictionary of the Druzes. Rowman & Littlefield Publishers. p. 57. ISBN 978-1-4422-4617-1.
  2. ^ "Celestial Delights - Telescope Reviews & Guides - Explore the Wonders of the Universe". celestialdelights.info. Archived from the original on 2007-03-11. Retrieved 2006-11-01.
  3. ^ Augustine to Galileo 2, p. 25
  4. ^ Schacht, Joseph; Meyerhof, Max: The medico-philosophical controversy between Ibn Butlan of Baghdad and Ibn Radwan of Cairo: a contribution to the history of Greek learning among the Arabs. Egyptian University. Faculty of Arts. Publication no. 13. Cairo 1937

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