Biography
Al-Battani was among the most influential astronomers of the medieval Islamic world, observing from Raqqa in present-day Syria. His careful measurements corrected and extended Ptolemy, his astronomical tables circulated for centuries, and his work was cited by Copernicus more than six hundred years later.
Scientific contributions
- Refined the length of the solar year and the precession constant
- Improved values for the obliquity of the ecliptic
- Advanced trigonometric methods later used across Europe
Related scientists
Knowledge connections
- Part ofIslamic Golden Age Astronomy
- InfluencedNicolaus Copernicus
Sources & references
The primary and reference sources this topic draws on.
- BritannicaEncyclopaedia Britannica
General reference for the history of astronomy, biographies, and cultural context.
- IAUInternational Astronomical Union
Official naming, definitions, constellation boundaries, and astronomical nomenclature.