Catalogue · c. 150 CE
Almagest Star Catalogue
History of Astronomy
About the catalogue
The star catalogue embedded in Ptolemy's Almagest, listing over a thousand stars in 48 constellations with positions and magnitudes. It built on Hipparchus's earlier catalogue and defined the classical sky for centuries.
Compiled by
Knowledge connections
- Introduced byPtolemy
- Part ofRoman Astronomy
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.