# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/ahmad-ibn-muhammad-ibn-kathir-al-farghani
# Generated: 2026-08-16T08:39:56.936Z

schema: https://schema.org/Person
url: "https://fame.am/person/ahmad-ibn-muhammad-ibn-kathir-al-farghani"
name: "Ahmad ibn Muhammad ibn Kathīr al-Farghānī"
slug: "ahmad-ibn-muhammad-ibn-kathir-al-farghani"
description: "Abū al-ʿAbbās Aḥmad ibn Muḥammad ibn Kathīr al-Farghānī also known as Alfraganus in the West, was an astronomer in the Abbasid court in Baghdad, and one of the most famous astronomers in the 9th century. Al-Farghani composed several works on astronomy and astronomical equipment that were widely distributed in Arabic and Latin and were influential to many scientists. His best known work, Kitāb fī Jawāmiʿ ʿIlm al-Nujūmi, was an extensive summary of Ptolemy's Almagest containing revised and more accurate experimental data. Christopher Columbus used Al Farghani's calculations for his voyages to America. In addition to making substantial contributions to astronomy, al-Farghani also worked as an engineer, supervising construction projects on rivers in Cairo, Egypt. The lunar crater Alfraganus is named after him."
tagline: "Abbasid astronomer (c. 800 – 870)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/CairoRodaAlfraganusMonument.jpg?width=1200"
gender: "male"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
deathDate: "861"
livingStatus: "DECEASED"
scores:
  popularity:           51.51
  momentum:             0
  historical:           20.61958933333334
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "STABLE"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://nl.wikipedia.org/wiki/Ahmad_ibn_Muhammad_ibn_Kath%C4%ABr_al-Fargh%C4%81n%C4%AB"
    title: "Ahmad ibn Muhammad ibn Kathīr al-Farghānī"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D8%A3%D8%AD%D9%85%D8%AF_%D8%A8%D9%86_%D9%83%D8%AB%D9%8A%D8%B1_%D8%A7%D9%84%D9%81%D8%B1%D8%BA%D8%A7%D9%86%D9%8A"
    title: "أحمد بن كثير الفرغاني"
    type:  "WIKIPEDIA"
  - url: "https://az.wikipedia.org/wiki/F%C9%99rqani"
    title: "Fərqani"
    type:  "WIKIPEDIA"
  - url: "https://bg.wikipedia.org/wiki/%D0%90%D0%BB-%D0%A4%D0%B0%D1%80%D0%B3%D0%B0%D0%BD%D0%B8"
    title: "Ал-Фаргани"
    type:  "WIKIPEDIA"
  - url: "https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B9%E0%A6%AE%E0%A6%BE%E0%A6%A6_%E0%A6%87%E0%A6%AC%E0%A6%A8%E0%A7%87_%E0%A6%AE%E0%A7%8B%E0%A6%B9%E0%A6%BE%E0%A6%AE%E0%A7%8D%E0%A6%AE%E0%A6%BE%E0%A6%A6_%E0%A6%87%E0%A6%AC%E0%A6%A8_%E0%A6%95%E0%A6%BE%E0%A6%B8%E0%A6%BF%E0%A6%B0_%E0%A6%86%E0%A6%B2-%E0%A6%AB%E0%A6%BE%E0%A6%B0%E0%A6%97%E0%A6%BE%E0%A6%A8%E0%A6%BF"
    title: "আহমাদ ইবনে মোহাম্মাদ ইবন কাসির আল-ফারগানি"
    type:  "WIKIPEDIA"
  - url: "https://bs.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Al-Farghan%C3%AD"
    title: "Al-Farghaní"
    type:  "WIKIPEDIA"
  - url: "https://ckb.wikipedia.org/wiki/%D8%A6%DB%95%D8%AD%D9%85%DB%95%D8%AF_%DA%A9%D9%88%DA%95%DB%8C_%DA%A9%DB%95%D8%B3%DB%8C%D8%B1_%D9%81%DB%95%D8%B1%D8%BA%D8%A7%D9%86%DB%8C"
    title: "ئەحمەد کوڕی کەسیر فەرغانی"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Farghani"
    title: "Farghani"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%A7%D8%A8%D9%86_%DA%A9%D8%AB%DB%8C%D8%B1_%D9%81%D8%B1%D8%BA%D8%A7%D9%86%DB%8C"
    title: "ابن کثیر فرغانی"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%90%D7%9C-%D7%A4%D7%A8%D7%A2'%D7%90%D7%A0%D7%99"
    title: "אל-פרע'אני"
    type:  "WIKIPEDIA"
  - url: "https://hr.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://id.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Ahmad_ibn_Muhammad_ibn_Kathir_al-Farghani"
    title: "Ahmad ibn Muhammad ibn Kathir al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%AB%E3%83%95%E3%83%A9%E3%82%AC%E3%83%8C%E3%82%B9"
    title: "アルフラガヌス"
    type:  "WIKIPEDIA"
  - url: "https://jv.wikipedia.org/wiki/Ab%C5%AB_al-%CA%BFAbb%C4%81s_A%E1%B8%A5mad_ibn_Mu%E1%B8%A5ammad_ibn_Kath%C4%ABr_al-Fargh%C4%81n%C4%AB"
    title: "Abū al-ʿAbbās Aḥmad ibn Muḥammad ibn Kathīr al-Farghānī"
    type:  "WIKIPEDIA"
  - url: "https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%9A-%E1%83%A4%E1%83%94%E1%83%A0%E1%83%92%E1%83%90%E1%83%9C%E1%83%98"
    title: "ალ-ფერგანი"
    type:  "WIKIPEDIA"
  - url: "https://kk.wikipedia.org/wiki/%D0%A4%D0%B5%D1%80%D2%93%D0%B0%D0%BD%D0%B8"
    title: "Ферғани"
    type:  "WIKIPEDIA"
  - url: "https://ku.wikipedia.org/wiki/Ferxan%C3%AE"
    title: "Ferxanî"
    type:  "WIKIPEDIA"
  - url: "https://ky.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C-%D0%A4%D0%B5%D1%80%D0%B3%D0%B0%D0%BD%D0%B8"
    title: "Аль-Фергани"
    type:  "WIKIPEDIA"
  - url: "https://lb.wikipedia.org/wiki/Al-Farghani"
    title: "Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://ms.wikipedia.org/wiki/Abul-Abbas_Ahmad_Al-Farghani"
    title: "Abul-Abbas Ahmad Al-Farghani"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q336550"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump