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Loading contentThe 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.
Facts on this topic will be cited from these primary and reference sources.
General reference for the history of astronomy, biographies, and cultural context.
Official naming, definitions, constellation boundaries, and astronomical nomenclature.