Al-Farghani

E322967

Persian scholar astronomer mathematician medieval scientist

Al-Farghani was a 9th-century Persian astronomer and mathematician whose influential works on Ptolemaic astronomy were widely used in both the Islamic world and medieval Europe.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (3)

Label	Occurrences
Al-Farghani canonical	4
Ahmad ibn Muhammad ibn Kathir al-Farghani	2
Al-Farghani al-Farghani	1

Statements (50)

Predicate	Object
instanceOf	Persian scholar ⓘ astronomer ⓘ mathematician ⓘ medieval scientist ⓘ
activeIn	Islamic Golden Age ⓘ
alsoKnownAs	Al-Farghani ⓘ surface form: Ahmad ibn Muhammad ibn Kathir al-Farghani Al-Farghani ⓘ surface form: Al-Farghani al-Farghani Albatenius ⓘ surface form: Alfraganus
approximateBirthCentury	9th century ⓘ
approximateDeathCentury	9th century ⓘ
associatedWith	House of Wisdom ⓘ
calculated	circumference of the Earth ⓘ
category	9th-century astronomers ⓘ 9th-century mathematicians ⓘ Persian astronomers ⓘ Persian mathematicians ⓘ
century	9th century ⓘ
contributedTo	translation movement in Baghdad ⓘ
employedBy	Abbasid Caliphate ⓘ
era	medieval period ⓘ
ethnicity	Persian ⓘ
field	astrology ⓘ astronomy ⓘ geodesy ⓘ mathematics ⓘ
influence	Islamic astronomy ⓘ Latin scholastic science ⓘ medieval European astronomy ⓘ
influencedBy	Claudius Ptolemaeus ⓘ surface form: Ptolemy
knownFor	Elements of Astronomy ⓘ Al-Farghani's Elements of Astronomy ⓘ surface form: Kitab fi Jawami Ilm al-Nujum works on Ptolemaic astronomy ⓘ
languageOfWork	Arabic ⓘ
name	Al-Farghani self-link ⓘ
region	Khorasan ⓘ surface form: Khurasan
religiousContext	Islamic world ⓘ surface form: Islamic civilization
studied	Ptolemaic planetary models ⓘ celestial spheres ⓘ precession of the equinoxes ⓘ sizes and distances of planets ⓘ
usedBy	Islamic astronomy ⓘ surface form: Islamic astronomers medieval European scholars ⓘ
workInfluenced	European university curricula in astronomy ⓘ medieval astronomical tables ⓘ
workTitle	Al-Sufi's Book of Fixed Stars ⓘ surface form: Compendium of the Science of the Stars Elements of Astronomy on the Celestial Motions ⓘ Al-Farghani's Elements of Astronomy ⓘ surface form: Jawami Ilm al-Nujum Al-Farghani's Elements of Astronomy ⓘ surface form: Kitab fi Jawami Ilm al-Nujum
workTranslatedInto	Hebrew ⓘ Latin ⓘ

How these facts were elicited

The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.

Instruction

You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10.

# Requirements
- If you don't know the subject at all, return an empty list.
- If the subject is not a named entity, return an empty list.
- Include at least one triple where predicate is "instanceOf".
- Do not get too wordy.
- Separate several objects into multiple triples with one object.

Input

Subject: Al-Farghani
Description of subject: Al-Farghani was a 9th-century Persian astronomer and mathematician whose influential works on Ptolemaic astronomy were widely used in both the Islamic world and medieval Europe.

Referenced by (7)

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

Islamic astronomy → hasKeyFigure → Al-Farghani ⓘ

Transoxiana → producedScholar → Al-Farghani ⓘ

Al-Farghani's Elements of Astronomy → author → Al-Farghani ⓘ

this entity surface form: Ahmad ibn Muhammad ibn Kathir al-Farghani

Al-Farghani's Elements of Astronomy → author → Al-Farghani ⓘ

Al-Farghani → name → Al-Farghani self-link ⓘ

Al-Farghani → alsoKnownAs → Al-Farghani ⓘ

this entity surface form: Ahmad ibn Muhammad ibn Kathir al-Farghani

Al-Farghani → alsoKnownAs → Al-Farghani ⓘ

this entity surface form: Al-Farghani al-Farghani