Mariam al-Asturlabiyy (Arabic: مريم الأسطرلابي or al-ʻIjliyyah bint al-ʻIjliyy al-Asturlabiyy (Arabic: العجلية بنت العجلي الأسطرلابي), was a 10th-century female astronomer and maker of astrolabes in Aleppo, in what is now northern Syria.
Al-'Ijliyah developed and manufactured astrolabes, an astronomical and navigation instrument, during the 10th century. She was employed by the Emir of Aleppo, Sayf al-Dawla, who reigned from 944 to 967 AD.
- Astronomy in the medieval Islamic world
- List of Muslim astronomers
- List of women astronomers
- Timeline of women in science
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