Ali ibn Isa al-Asturlabi
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Arab astronomer
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Ali ibn Isa al-Asturlabiphysics Degrees
Physics
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#11998
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Astronomy
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World Rank
#2269
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Physics
Why Is Ali ibn Isa al-Asturlabi Influential?
(Suggest an Edit or Addition)According to Wikipedia, ʿAlī ibn ʿĪsā al-Asṭurlābī 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.
