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                    Statements (30)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:astronomical_model | 
| gptkbp:alsoKnownAs | geocentric model | 
| gptkbp:basisFor | astrological calculations | 
| gptkbp:category | history of astronomy obsolete scientific theories | 
| gptkbp:criticizedFor | gptkb:Galileo_Galilei gptkb:Johannes_Kepler gptkb:Nicolaus_Copernicus | 
| gptkbp:describedBy | gptkb:Almagest | 
| gptkbp:dominantIn | gptkb:Western_world Islamic world | 
| gptkbp:explains | retrograde motion of planets | 
| gptkbp:feature | Earth at the center of the universe epicycles and deferents planets and Sun revolve around Earth | 
| gptkbp:hasComponent | deferent epicycle equant | 
| gptkbp:influenced | Islamic astronomy medieval astronomy European astronomy | 
| gptkbp:opposedBy | gptkb:Scientific_Revolution | 
| gptkbp:originatedIn | 2nd century AD | 
| gptkbp:proposedBy | gptkb:Claudius_Ptolemy | 
| gptkbp:replacedBy | heliocentric model | 
| gptkbp:usedUntil | 16th century | 
| gptkbp:bfsParent | gptkb:Astronomical_clock gptkb:On_the_Heavens | 
| gptkbp:bfsLayer | 5 | 
| https://www.w3.org/2000/01/rdf-schema#label | Ptolemaic system |