al-Khalili Abu Imran Musa ibn Muhammad

الخليلي أبو عمران موسى بن محمد

†

† Hijri date derived by computation from the Gregorian/Julian date; it may differ from the transmitted date by a day or two.

Astronomer who grew up in Damascus and wrote a treatise on astronomy; died 1402 CE.

Depth

At a glance

Roles
Astronomer
Counted among
Sunni
Era
The Mongol and Post-Mongol Era
Region
Levant & Iraq
Review
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Life in time

13001325135013751400142514501475150015251550 c.
The Crusades, Ayyubids and Mamluks · The Gunpowder Empires · The Mongol and Post-Mongol Era Contemporaries: Abd al-Baqi Yazdi · Abd al-Karim al-Jili · Abd al-Rahman al-Tha'alibi · Abd Allah ibn Miqdad al-Aqfahsi · Abu Zayyan Muhammad V, Marinid Sultan

Astronomy and timekeeping

Place in the story

  • ScholarTradition

Roles are dated and sourced; the museum describes the act and attributes the judgement.

Overview

Abu Imran Sharaf al-Din Musa ibn Muhammad ibn Uthman al-Khalili, an astronomer who grew up in Damascus and wrote a treatise on astronomy. He died in 1402 CE, according to the "Encyclopaedia of Notable Scholars and Men of Letters". 1

People and things also explored

Sharaf al-Dawla's observatory at Baghdad· Qibla-finding by stars, winds, mountains and rivers· Sizes of the heavenly bodies· Distances of the heavenly bodies from the Earth· The seven climates· The second motion (the planets' own motion along the zodiac)· The first motion (diurnal rotation of the heavens)· The solstices

Sources

  1. Mawsu'at A'lam al-Ulama' wa-l-Adaba' al-Arab wa-l-Muslimin — Dar al-Jil / ALECSO
Cite this page

islam.museum contributors. “al-Khalili Abu Imran Musa ibn Muhammad”. islam.museum, https://islam.museum/en/person/al-khalili-abu-imran-musa-ibn-muhammad/. CC BY-SA 4.0. Last updated 2026-10-16.

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Wing

People

Prophets, companions, scholars, rulers, scientists, poets, travelers: women and men who shaped the story.
Related

Sharaf al-Dawla's observatory at Baghdad

The observatory the Buyid sultan Sharaf al-Dawla commissioned at Baghdad in 378: he ordered the observation of the seven planets in their courses and zodiacal transits on the model of what al-Ma'mun had done, and a well-built observing house went up at the back of the garden in Dar al-Mamlaka, its sightings written into a register drawn up by those who knew geometry.