 Jabir ibn Aflah

Abū Muḥammad Jābir ibn Aflaḥ (, ; 1100–1150) was an Arab Muslim astronomer and mathematician from Seville, who was active in 12th century al-Andalus.His work "Iṣlāḥ al-Majisṭi" (Correction of the "Almagest") influenced Islamic, Jewish, and Christian astronomers.