9th-century astronomers

Al-Battani (before 858929), archaically Latinized as Albategnius, was a Arab Muslim astronomer, astrologer, geographer and mathematician, who lived and worked for most of his life at Raqqa, now in Syria. He is considered to be one of the greatest and most famous of the astronomers of the medieval Islamic world.

Mesopotamian astronomer and mathematician

thumb|Einhard as scribe. Manuscript depiction from 1050

Persian Islamic polymath (died 895)

Dicuilus (Gaelic: ; fl.814–825 A.D.) was an Irish monk, astronomer, geographer and author born during the second half of the 8th century, possibly in the Hebrides. He travelled the Frankia around the turn of the 9th century and was involved with the Carolingian Renaissance under Louis the Pious. He was the author of astronomical and cosmographical treatises during the early 9th century, an example of Hiberno-Latin culture.

Syrian Melkite Christian physician, philosopher, astronomer, mathematician and translator (820–912)

Medieval Arab mathematician

Arab astronomer

thumb|Two ivory tablets attributed to Tuotilo

Islamic astronomer

anonymous biography of Louis the Pious from AD 814 to 840

9th century Syriac astronomer and mathematician (c. 786 - c. 845)

Dungal (fl. 811–828) was an Irish monk, teacher, astronomer, and poet. He was to live at Saint-Denis, Pavia, and Bobbio.

astronomer