Ibn al-Kammad
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Al-Andalus Muslim astronomer (died 1195)
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Abu Jafar Ahmad ibn Yusuf ibn al‐Kammad (
Iberian peninsula but across North Africa, and specifically Tunisia, where the astronomer Ibn Ishaq al-Tunisi wrote commentaries on his works.[2]
An astrological work, Kitāb Mafātīḥ alasrār, (in which he states the duration of pregnancy depended on the horoscope) is also attributed to him and was strongly criticized by
Ibn al‐Haim al‐Ishbili
in the latter's al Zīj al kāmil (c.1205).
Notes
- ^ Trías, Rolando A. Laguarda (1992). Aclaratorio colombino (in Spanish). Museo Didactico Artiguista.
- ^ Comes 2007.
References
- Comes, Mercè (2007). "Ibn al‐Kammād: Abū Jaʿfar Aḥmad ibn Yūsuf ibn al‐Kammād". In Thomas Hockey; et al. (eds.). The Biographical Encyclopedia of Astronomers. New York: Springer. pp. 559–60. ISBN 978-0-387-31022-0. (PDF version)
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