Muḥammad ibn IbrÄhÄ«m al-FazÄrÄ«
Abu Abdallah Muhammad ibn Ibrahim ibn Habib al - Fazari (Arabic: أبو عبدالله محمد بن إبراهيم بن حبيب الفزاري, Abū ʿ Abd DMG Muḥammad Ibrāhīm bin bin Habib al - Fazari; † beginning of the 9th century, probably in Baghdad ) was a Muslim philosopher, mathematician, astronomer and astrologer. He was considered one of the pioneers in Islamic astronomy, the Indian texts of the Islamic world made accessible.
About him little is known. He came possibly from an old noble family in Kufa in Iraq. He worked in Baghdad at the time of the Caliph al - Mansur (reigned 754-775 ) and his successors. For Al - Mansur he fixed the astrologically favorable founding date of Bagdad ( 762 ). To 770 he translated at the request of the Caliph Indian astronomical texts ( Sindhind, Sanskrit treatise ) into Arabic. They had come by an Indian astronomers to Baghdad. Maybe it is here to texts from the tradition of Brahmagupta. His own astronomical manual ( Zij ) is based on ( Zij al - Kabir al Sindhind ), but also used other influences, and he also wrote inspired by the Sanskrit literature an astronomical- astrological poem. In addition, is still a arisen about 10 years after his major work known astronomical handbook ( the alignment of astronomical data to the Islamic calendar was used ) and otherwise only the titles of lost works ( via the measurement of the moon, On the armillary sphere, over the astrolabe ). Most of his work as an astronomer is known from the writings of Al -Biruni, who is also critical of him and his contemporaries Yaqub ibn Tariq, who also translated the Indian texts, remarked.
According to legend, he is said to have introduced the astrolabe.