Muslim Astronomers in the 11th–13th Century and Their Contributions

Abstract

This study explores the intellectual continuity and scientific innovations of Muslim astronomers during the 11th–13th centuries, a period often considered the golden age of Islamic civilization. While many modern narratives attribute the birth of scientific empiricism to the European Renaissance, this research highlights that foundational elements of observation, experimentation, and mathematical modeling had already been established centuries earlier within the Islamic world. Using a historical and comparative methodology, this study analyzes primary sources such as Kitab al-Manazir (Ibn al-Haytham), Al-Qanun al-Mas‘udi (Al-Biruni), Jami‘ al-Mabadi wa al-Ghayat (Al-Marrakusyi), and At-Tadhkira fi Ilm al-Hay’ah (Nashiruddin al-Thusi). Findings reveal that these astronomers pioneered systematic experimentation, field measurement, and theoretical modeling, which later influenced European scientists such as Roger Bacon, Kepler, and Copernicus. Their works established principles of reproducibility, empirical validation, and collaborative research that prefigured the modern scientific Method. The study concludes that Islamic astronomy of the 11th–13th centuries did not merely preserve Greek knowledge but transformed it into an empirical and mathematical discipline, forming an essential foundation for modern astronomy and physics.