Al-Khalili

Full name: 
Shams al-Dīn Abū ʿAbd Allāh Muḥammad ibn Muḥammad al-Khalīlī
Date of birth: 
1320
Date of death: 
1380

Shams al-Dīn Abū ʿAbd Allāh Muḥammad ibn Muḥammad al-Khalīlī was a Syrian astronomer who compiled extensive tables for astronomical use. He worked for most of his life as a religious timekeeper (muwaqqit) at the Umayyad Mosque in Damascus.