Toledan Tables and the motion of the solar apogee
Tablas toledanas y movimiento del apogeo solar
- Date
- c. 1080 · confidence medium
- Place
- Toledo, Castile-La Mancha, Spain
- Credited to
- Azarquiel and the astronomers of Sa'id al-Andalusi
- People
- 👤 Azarquiel1027–1087
- Field
- Cosmos & Earth
What was discovered
Astronomical tables from Taifa-era Toledo, translated into Latin and used across Europe for two centuries. Azarquiel also measured the proper motion of the solar apogee relative to the stars (about 12″ per year).
Copernicus cites Azarquiel in De revolutionibus.
What it led to
- Alfonsine Tables
- Latin astronomy of the 12th-13th centuries
- correction of the Ptolemaic solar model