About Ali ibn Isa al-Asturlabi
Ali ibn Isa al-Asturlabi was an Iranian astronomer, geographer and astrologer.
ʿAlī ibn ʿĪsā al-Asṭurlābī (, fl. 832) was a 9th century Arab geographer and astronomer. He wrote a treatise on the astrolabe and was an opponent of astrology. During the reign of al-Ma'mun, and together with Khālid ibn ʿAbd al-Malik al-Marwarrūdhī, he participated in an expedition to the Plain of Sinjar to measure the length of a degree. Differing reports state that they obtained a result of , 56 and two-thirds, or 56 and one-quarter miles per degree.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
Related people
Same field, nearest in time
Frequently asked questions
Who was Ali ibn Isa al-Asturlabi?
Arab astronomer
What was Ali ibn Isa al-Asturlabi's occupation?
Ali ibn Isa al-Asturlabi was an astronomer, geographer and astrologer.
What nationality was Ali ibn Isa al-Asturlabi?
Ali ibn Isa al-Asturlabi was Iranian.
Sources & further reading
· Wikipedia: Ali ibn Isa al-Asturlabi
· DBpedia: Ali ibn Isa al-Asturlabi
Cite this page
APA: Biography.guide. (2026). Ali ibn Isa al-Asturlabi. https://biography.guide/ali-ibn-isa-al-asturlabi/
MLA: "Ali ibn Isa al-Asturlabi." Biography.guide, https://biography.guide/ali-ibn-isa-al-asturlabi/.
Chicago: "Ali ibn Isa al-Asturlabi." Biography.guide. https://biography.guide/ali-ibn-isa-al-asturlabi/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
Page generated 2026-09-27 04:58 UTC