ʿAbd al-Rahman al-Sūfī (Persian: عبدالرحمن الصوفی; 7 December 903 – 25 May 986) was an Iranian astronomer. His work Kitāb ṣuwar al-kawākib ("The Book of Fixed Stars"), written in 964, included both textual descriptions and illustrations. The Persian polymath Al-Biruni wrote that al-Sūfī's work on the ecliptic was carried out in Shiraz. Al-Sūfī lived at the Buyid court in Isfahan. Source: Wikipedia (en)