813 - BaghdadCapitals in Asia Baghdad is the capital of Iraq and the Baghdad Province. It is the second largest city in Southwest Asia after Tehran, with the 2003 population estimated at 5,772,000. Situated on the Tigris River at 33°20 north and 44°26 east, the city w School of Astronomy
828 - al-Shammasiyya observatory of Abi Mansur near Baghdad
831-2 - Mount Qasiyun observatory near DamascusThis is about Damascus, the capital of Syria. There is also a Damascus, Maryland, a Damascus, Oregon, a Damascus, Pennsylvania, and a Damascus, Virginia. Damascus ( Arabic: Dimashq Dimashq al-Sham al-Sham Tiberian Hebrew Dammeseq Dammseq Sephardi Hebrew D
840 - al-FarghaniAbu'l-Abbas Ahmad ibn Muhammad ibn Kathir al-Farghani was a 9th century Islamic astronomer who wrote extensively on the motion of celestial bodies. His work was translated into Latin in the 12th century.Compendium of the Science of the Stars
963 - al-Sufi's star catalog Book of the Fixed Stars
988 - Baghdad observatory of al-Quhi and al-Buzjani
ca. 900 - Hanlin Academy observatory in Northern China
994 - Ray observatory of al-Khujandi near Tehran, Iran
1000 - Mokattam observatory, Egypt for al-Hakim bi-Amr AllahHakim bi-Amr Allah (literally: "Ruler by God's Command") was the sixth Fatimid Caliph in Egypt, ruling from 996 to 1021. He was born in Egypt in 985 and successfully succeeded his father Abu Mansur Nizar al-Aziz in 996 at the age of eleven in an initial d
1023 - Hamadan observatory
ca. 1030 - Treasury of Optics by Ibn al-Haytham of Egypt [Alhazen]
1.3 1000s
1074-92 - Malikshah observatory at Isfahan used by al-Khayyam
1.4 1100s
1119-25 - Cairo al-Bataihi observatory for al-Afdal