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gptkbp:instanceOf
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gptkb:geologist
gptkb:mathematician
Ancient Greek astronomer
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gptkbp:birthDate
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c. 190 BC
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gptkbp:birthPlace
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gptkb:Nicaea
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gptkbp:cataloged
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about 850 stars
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gptkbp:contributedTo
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development of trigonometric tables
lunar eclipse prediction
solar eclipse prediction
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gptkbp:deathDate
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c. 120 BC
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gptkbp:deathPlace
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gptkb:Rhodes
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gptkbp:field
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gptkb:astronomy
gptkb:mathematics
geography
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https://www.w3.org/2000/01/rdf-schema#label
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Hipparchus
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gptkbp:influenced
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gptkb:Ptolemy
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gptkbp:influencedBy
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Babylonian astronomy
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gptkbp:knownFor
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gptkb:star
discovering precession of the equinoxes
founding trigonometry
improving astronomical instruments
solar and lunar theories
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gptkbp:legacy
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Hipparchus asteroid named after him
Hipparchus crater on the Moon named after him
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gptkbp:nationality
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gptkb:Greek
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gptkbp:notableWork
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gptkb:star
gptkb:Commentary_on_the_Phaenomena_of_Eudoxus_and_Aratus
gptkb:On_the_Length_of_the_Year
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gptkbp:officeLocation
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gptkb:Alexandria
gptkb:Rhodes
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gptkbp:usedFor
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gptkb:armillary_sphere
gptkb:dioptra
astrolabe
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gptkbp:bfsParent
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gptkb:Griffith_Observatory
gptkb:Astronomie
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gptkbp:bfsLayer
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4
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