Planetary Hypotheses

E200664

Planetary Hypotheses is an ancient astronomical treatise by Ptolemy that elaborates a geometric, three-dimensional model of the cosmos to explain the motions and distances of the planets.

All labels observed (3)

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf ancient astronomical treatise ⓘ
work by Claudius Ptolemy ⓘ
aimsTo construct a physical model corresponding to mathematical schemes ⓘ
explain observed planetary motions ⓘ
approximateDate 2nd century ⓘ
assumes finite universe bounded by the sphere of fixed stars ⓘ
uniform circular motion ⓘ
author Claudius Ptolemy ⓘ
linked to: Claudius Ptolemaeus
buildsOn Almagest ⓘ
category Ptolemaic astronomy ⓘ
ancient Greek astronomical works ⓘ
cosmologicalAssumption Earth at the center of the universe ⓘ
planets attached to nested spheres ⓘ
cosmologicalModel geocentric model ⓘ
describes geometric model of the cosmos ⓘ
planetary distances ⓘ
planetary motions ⓘ
three-dimensional planetary models ⓘ
field astronomy ⓘ
focusesOn mathematical modeling of planetary orbits ⓘ
three-dimensional realization of Ptolemaic system ⓘ
genre mathematical astronomy ⓘ
hasPart Book I of Planetary Hypotheses ⓘ
Book II of Planetary Hypotheses ⓘ
hasSubject cosmic distances ⓘ
physical realization of mathematical models ⓘ
planetary order ⓘ
historicalPeriod Hellenistic astronomy ⓘ
influenced medieval European astronomy ⓘ
medieval Islamic astronomy ⓘ
inUniverseModel Moon as the nearest celestial body to Earth ⓘ
Sun as a planet orbiting Earth ⓘ
language Ancient Greek ⓘ
originallyWrittenIn Greek language ⓘ
places fixed stars on outermost sphere ⓘ
preservedIn Arabic translation ⓘ
Latin translation ⓘ
provides numerical values for planetary distances ⓘ
numerical values for sizes of planetary spheres ⓘ
relatedWork Almagest ⓘ
topic epicycles and deferents ⓘ
geocentric cosmology ⓘ
ordering of planetary spheres ⓘ
sizes of celestial spheres ⓘ
uses geometric constructions ⓘ
spherical geometry ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Claudius Ptolemaeus → notableWork → Planetary Hypotheses ⓘ
Planetary Hypotheses → hasPart → Book I of Planetary Hypotheses ⓘ
linked to: Planetary Hypotheses
Planetary Hypotheses → hasPart → Book II of Planetary Hypotheses ⓘ
linked to: Planetary Hypotheses