Abu Ali al-Hassan al-Marrakushi
الحسن المراكشي
The Jami‘ al-Mabadi’ wa’l-Ghayat, (Khalili Collection of Islamic Art)
Born	fl. late 13th century
Academic work
Era	Islamic Golden Age
Main interests	Mathematics, astronomy
Notable works	Jāmiʿ al-mabādiʾ wa’l-ghāyāt fī ʿilm al-mīqāt (Collection of the Principles and Objectives in the Science of Timekeeping)

Abu Ali al-Hassan al-Marrakushi (Arabic: الحسن المراكشي; late 13th century) was a Magreb astronomer and mathematician from the Kingdom of Morocco . He was especially important in the field of trigonometry and practical astronomy. He wrote Jāmiʿ al-mabādiʾ wa’l-ghāyāt fī ʿilm al-mīqāt (Collection of the Principles and Objectives in the Science of Timekeeping), a treatise on spherical astronomy and astronomical instruments.^[1] The first part was translated into French by the orientalist and astronomer Jean Jacques Emmanuel Sédillot [fr] during the early 19th century, and published after Sédillot's death.^{[2][page needed]}

The treatise, which was written in Cairo between 1276 and 1282, is regarded as the most complete source to have survived about medieval Islamic astronomical instruments.^{[3][page needed][4]}

Legacy[edit]

The crater Al-Marrakushi on the Moon is named after him.^{[citation needed]}

References[edit]

Sources[edit]

• Charette, François (2007). "Marrākushī: Sharaf al‐Dīn Abū ʿAlī al‐Ḥasan ibn ʿAlī ibn ʿUmar al‐Marrākushī". In Thomas Hockey; et al. (eds.). The Biographical Encyclopedia of Astronomers. New York: Springer. ISBN 978-0-387-31022-0.
• Hernández Pérez, Azucena (2021). "Art and Science in al-Andalus in the Late Medieval Mediterranean Cultures: Almohad, Nasrid and Ayyubid Astrolabes and their Contexts". In Marcos Cobaleda, María (ed.). Artistic and Cultural Dialogues in the Late Medieval Mediterranean. Springer Nature. pp. 239–251. doi:10.1007/978-3-030-53366-3. ISBN 978-3-030-53366-3.
• Rogers, J. M. (2008). The Arts of Islam: Treasures from the Nasser D. Khalili Collection (Revised and expanded ed.). Abu Dhabi: Tourism Development & Investment Company (TDIC). OCLC 455121277.
• Sédillot, Louis‐Amélie (1841). Mémoire sur les Instruments Astronomiques des Arabes. Paris: Imprimerie Royale – via Internet Archive.

Further reading[edit]

• Abu Ali al-Hasan al-Marrakushi (1834). Traité des instruments astronomiques des Arabes. Translated by Sédillot, Jean-Jacques. Paris: Imprimerie Royale – via Internet Archive.
• "Collection of the Principles and Objectives in the Science of Timekeeping". Library of Congress. Retrieved 9 February 2023.
• Suter, Heinrich (1900). Die Mathematiker und Astronomen der Araber und ihre Werke (in German). Leipzig: Teubner. pp. 144–145. OCLC 230703086.
• Laffitte, Roland (2012). Catalogue 2 : Abū ᶜAlī ‘Ḥasan al-Marrākušī (1282), in Le ciel des Arabes. Apport de l’uranographie arabe. Paris: Geuthner. pp. 167–185.