Abu Jafar Ahmad ibn Yusuf ibn al-Kammad was a Muslim Arab astronomer born in Seville, Al-Andalus. He is known to have been educated in Cordoba by the students of Al-Zarqali.
About this person
Abu Jafar Ahmad ibn Yusuf ibn al-Kammad was a Muslim Arab astronomer born in Seville, Al-Andalus. He is known to have been educated in Cordoba by the students of Al-Zarqali. His works such as al Kawr ala al dawr, al Amad ala al abad, and al Muqtabas, which is a compilation of the two previous Zij, made him famous not only on the Iberian Peninsula but across the Maghreb, and specifically Tunisia, where the astronomer Ibn Ishaq al-Tunisi wrote commentaries on his works.
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