Al-Bi?r
Al-Bi?r?j? Al-Ishb?l?, Ab? Is??q
also known as Alpetragius
(his surname probably derives from Pedroche, Spain, near Cordoba; fl. Seville, ca. 1190)
astronomy, natural philosophy.
Al-Bi?r?j?’s only extant work is De motibus celorum, originally written in Arabic. He was a contemporary of Ibn Rushd (Averroës), and his astronomical system aroused much interest among such Chiristan natural philosophers as Albertus Magnus, Robert Grosseteste, and Roger Bacon. For a detailed study of his life and work, see Supplement.
