Ali ibn Isa al-Asturlabi
Arab geographer and astronomer (fl. 832) / From Wikipedia, the free encyclopedia
For other people named Ali ibn Isa, see Ali ibn Isa (disambiguation).
Not to be confused with Al-Badi' al-Asturlabi.
ʿAlī ibn ʿĪsā al-Asṭurlābī (Arabic: علي بن عيسى, 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.[1] Differing reports state that they obtained a result of 56 miles (90 km), 56 and two-thirds, or 56 and one-quarter miles per degree.[2]
Quick Facts Alī ibn ʿĪsā al-Asṭurlābī, Born ...
Alī ibn ʿĪsā al-Asṭurlābī | |
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علي بن عيسى | |
Born | before 858 |
Academic work | |
Era | Islamic Golden Age |
Main interests | Geography, astronomy |
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