Ibn al-Saffar

Abu al‐Qasim Ahmad ibn Abd Allah ibn Umar al‐Ghafiqī ibn al-Saffar al‐Andalusi (born in Cordoba, died in the year 1035 at Denia), also known as Ibn al-Saffar (literally: son of the brass worker), was a Spanish-Arab[1] astronomer in Al-Andalus. He worked at the school founded by his colleague Al-Majriti in Córdoba. His best-known work was a treatise on the astrolabe, a text that was in active use until the 15th century and influenced the work of Kepler. He also wrote a commentary on the Zij al-Sindhind, and measured the coordinates of Mecca.[2]

Ibn al-Saffar later influenced the works of Abu al-Salt.

Paul Kunitzsch argued that a Latin treatise on the astrolabe long attributed to Mashallah, and used by Chaucer to write A Treatise on the Astrolabe, is in fact written by Ibn al-Saffar.[3][4]

The exoplanet Saffar, also known as Upsilon Andromedae b, is named in his honor.

Notes

North, John (2008). Cosmos: An Illustrated History of Astronomy and Cosmology. University of Chicago Press. ISBN 9780226594415.
Rius 2007.
Kunitzsch, Paul (1981). "On the authenticity of the treatise on the composition and use of the astrolabe ascribed to Messahalla". Archives Internationales d'Histoire des Sciences Oxford. 31 (106): 42–62.
Selin, Helaine (2008-03-12). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Springer Science & Business Media. p. 1335. ISBN 978-1-4020-4559-2. Paul Kunitzsch has recently established that the Latin treatise on the astrolabe long ascribed to Ma'sh'allah and translated by John of Seville is in fact by Ibn al-Saffar, a disciple of Maslama al-Majriti.

References

Rius, Mònica (2007). "Ibn al‐Ṣaffār: Abū al‐Qāsim Aḥmad ibn ʿAbd Allāh ibn ʿUmar al‐Ghāfiqī ibn al‐Ṣaffār al‐Andalusī". In Thomas Hockey; et al. (eds.). The Biographical Encyclopedia of Astronomers. New York: Springer. pp. 566–7. ISBN 978-0-387-31022-0.CS1 maint: ref=harv (link) (PDF version)

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[1] North, John (2008). Cosmos: An Illustrated History of Astronomy and Cosmology. University of Chicago Press. ISBN 9780226594415.

[FOOTNOTERius2007-2] Rius 2007.

[3] Kunitzsch, Paul (1981). "On the authenticity of the treatise on the composition and use of the astrolabe ascribed to Messahalla". Archives Internationales d'Histoire des Sciences Oxford. 31 (106): 42–62.

[4] Selin, Helaine (2008-03-12). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Springer Science & Business Media. p. 1335. ISBN 978-1-4020-4559-2. Paul Kunitzsch has recently established that the Latin treatise on the astrolabe long ascribed to Ma'sh'allah and translated by John of Seville is in fact by Ibn al-Saffar, a disciple of Maslama al-Majriti.