Ali ibn Khalaf
Andalusian astronomer
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| Intro | Andalusian astronomer | |
| Places | Spain | |
| is | Astronomer | |
| Gender |
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The details
Biography
Alī ibn Khalaf (Arabic: علي بن خلف الأندلسي) was an Andalusian astronomer who belonged to the scientific circle of Ṣāʿid al- Andalusī.
He devised, with help from al-Zarqali, the universal astrolabe. Both Khalaf and al-Zarqali's design were included in the Libros del Saber (1227) of Alfonso X of Castile.