8th-century astronomers

Alcuin of York (; ; 735 – 19 May 804), also called Ealhwine, Alhwin, or Alchoin, was an Anglo-Latin scholar, clergyman, poet, and teacher from York, Northumbria. He was born around 735 and became the student of Archbishop Ecgbert at York. At the invitation of Charlemagne, he became a leading scholar and teacher at the Carolingian court, where he remained a figure in the 780s and 790s. Before that, he was also a court chancellor in Aachen. "The most learned man anywhere to be found", according to Einhard's Life of Charlemagne (–833), he is considered among the most important intellectual archit

Persian mathematician and astronomer

Irish churchman, astronomer, bishop of Salzburg

Korean astronomer