# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/hipparchus
# Generated: 2026-09-02T15:01:06.181Z

schema: https://schema.org/Person
url: "https://fame.am/person/hipparchus"
name: "Hipparchus"
slug: "hipparchus"
description: "He stumbled onto precession — the slow wobble of Earth's axis — while mapping stars with a precision no one had managed before, and in doing so cracked open the architecture of the sky."
tagline: "2nd century Greek astronomer, geographer and mathematician"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Head_of_Hipparchus_(cropped).jpg"
gender: "male"
country:
  name: "Turkey"
  isoCode: "TR"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "-190"
deathDate: "-120"
livingStatus: "DECEASED"
scores:
  popularity:           61.25
  momentum:             0
  historical:           24.386136
  currentAttention:     4.607142857142858
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Scientists"
    slug: "scientists"
  - name: "Scientist"
    slug: "scientist"
  - name: "Astronomy"
    slug: "astronomy"
  - name: "Mathematics"
    slug: "mathematics"
  - name: "Ancient History"
    slug: "ancient-history"
sources:
  - url: "https://www.wikidata.org/wiki/Q159905"
    title: "Wikidata"
    type:  "WIKIDATA"
  - url: "https://en.wikipedia.org/wiki/Hipparchus"
    title: "Wikipedia"
    type:  "WIKIPEDIA"
  - url: "https://pantheon.world/profile/person/Hipparchus"
    title: "Pantheon 2.0"
    type:  "DATABASE"
  - url: "https://arz.wikipedia.org/wiki/%D9%87%D9%8A%D8%A8%D8%A7%D8%B1%D8%AE%D9%88%D8%B3"
    title: "هيبارخوس"
    type:  "WIKIPEDIA"
  - url: "https://ast.wikipedia.org/wiki/Hiparco_de_Nicea"
    title: "Hiparco de Nicea"
    type:  "WIKIPEDIA"
  - url: "https://az.wikipedia.org/wiki/Hipparx"
    title: "Hipparx"
    type:  "WIKIPEDIA"
  - url: "https://be_x_old.wikipedia.org/wiki/%D0%93%D1%96%D0%BF%D0%B0%D1%80%D1%85"
    title: "Гіпарх"
    type:  "WIKIPEDIA"
  - url: "https://be.wikipedia.org/wiki/%D0%93%D1%96%D0%BF%D0%B0%D1%80%D1%85"
    title: "Гіпарх"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%A5%D0%B8%D0%BF%D0%B0%D1%80%D1%85"
    title: "Хипарх"
    type:  "WIKIPEDIA"
  - url: "https://bn.wikipedia.org/wiki/%E0%A6%B9%E0%A6%BF%E0%A6%AA%E0%A6%BE%E0%A6%B0%E0%A6%95%E0%A6%BE%E0%A6%B8"
    title: "হিপারকাস"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Hiparc_de_Nicea"
    title: "Hiparc de Nicea"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Hipparchos"
    title: "Hipparchos"
    type:  "WIKIPEDIA"
  - url: "https://cy.wikipedia.org/wiki/Hipparchus"
    title: "Hipparchus"
    type:  "WIKIPEDIA"
  - url: "https://da.wikipedia.org/wiki/Hipparchos"
    title: "Hipparchos"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Hipparchos_von_Nic%C3%A4a"
    title: "Hipparchos von Nicäa"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%8A%CF%80%CF%80%CE%B1%CF%81%CF%87%CE%BF%CF%82_%CE%BF_%CE%A1%CF%8C%CE%B4%CE%B9%CE%BF%CF%82"
    title: "Ίππαρχος ο Ρόδιος"
    type:  "WIKIPEDIA"
  - url: "https://eo.wikipedia.org/wiki/Hiparko"
    title: "Hiparko"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Hiparco_de_Nicea"
    title: "Hiparco de Nicea"
    type:  "WIKIPEDIA"
  - url: "https://eu.wikipedia.org/wiki/Hiparko_Nizeakoa"
    title: "Hiparko Nizeakoa"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%A7%D8%A8%D8%B1%D8%AE%D8%B3"
    title: "ابرخس"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Hipparkhos_Nikaialainen"
    title: "Hipparkhos Nikaialainen"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Hipparque_(astronome)"
    title: "Hipparque (astronome)"
    type:  "WIKIPEDIA"
  - url: "https://ga.wikipedia.org/wiki/Hioparcas"
    title: "Hioparcas"
    type:  "WIKIPEDIA"
  - url: "https://gl.wikipedia.org/wiki/Hiparco"
    title: "Hiparco"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%94%D7%99%D7%A4%D7%A8%D7%9B%D7%95%D7%A1"
    title: "היפרכוס"
    type:  "WIKIPEDIA"
  - url: "https://en.wikiquote.org/wiki/Hipparchus"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://it.wikiquote.org/wiki/Ipparco_di_Nicea"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://sr.wikiquote.org/wiki/%D0%A5%D0%B8%D0%BF%D0%B0%D1%80%D1%85_%D1%81%D0%B0_%D0%A0%D0%BE%D0%B4%D0%BE%D1%81%D0%B0"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://af.wikipedia.org/wiki/Hipparchos"
    title: "Hipparchos"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%A3%D8%A8%D8%B1%D8%AE%D8%B4"
    title: "أبرخش"
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Born around 190 BC in Nicaea, Hipparchus worked as an astronomer between 162 and 127 BC, likely dying on Rhodes. He built the first quantitative models for the Sun and Moon that actually survived scrutiny, drawing on centuries of Babylonian observations and Greek predecessors like Meton and Eratosthenes. Along the way he developed trigonometry and constructed its tables, solved problems of spherical geometry, compiled the western world's first comprehensive star catalog, and possibly invented the astrolabe and armillary sphere. He measured Earth's precession, contributed an atomist theory of light, and left behind a body of work so exacting that Jean Baptiste Joseph Delambre called him the "father of astronomy" in 1817. Ancient observers had watched the heavens for generations; Hipparchus made the math stick.