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- Ali_ibn_Isa_al-Asturlabi abstract "ʿAlī ibn ʿĪsā al-Asṭurlābī (Arabic: علي بن عيسى) was an Afro-Arab[citation needed] astronomer and geographer of the 9th century. 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, or the circumference of the Earth. He measured the Earth's circumference, getting a result of 40,248 km (or, according to other sources, 41,436 km).[citation needed]".
- Ali_ibn_Isa_al-Asturlabi wikiPageExternalLink Ali_ibn_Isa_al-Asturlabi_BEA.htm.
- Ali_ibn_Isa_al-Asturlabi wikiPageExternalLink Ali_ibn_Isa_al-Asturlabi_BEA.pdf.
- Ali_ibn_Isa_al-Asturlabi wikiPageID "86822".
- Ali_ibn_Isa_al-Asturlabi wikiPageRevisionID "579961559".
- Ali_ibn_Isa_al-Asturlabi hasPhotoCollection Ali_ibn_Isa_al-Asturlabi.
- Ali_ibn_Isa_al-Asturlabi name "Isa, Ali Ben".
- Ali_ibn_Isa_al-Asturlabi shortDescription "Arab astronomer".
- Ali_ibn_Isa_al-Asturlabi description "Arab astronomer".
- Ali_ibn_Isa_al-Asturlabi description "Arab astronomer".
- Ali_ibn_Isa_al-Asturlabi subject Category:9th-century_astronomers.
- Ali_ibn_Isa_al-Asturlabi subject Category:Astronomers_of_medieval_Islam.
- Ali_ibn_Isa_al-Asturlabi subject Category:Medieval_Arab_astronomers.
- Ali_ibn_Isa_al-Asturlabi type Agent.
- Ali_ibn_Isa_al-Asturlabi type Person.
- Ali_ibn_Isa_al-Asturlabi type Person.
- Ali_ibn_Isa_al-Asturlabi type Q215627.
- Ali_ibn_Isa_al-Asturlabi type Q5.
- Ali_ibn_Isa_al-Asturlabi type Agent.
- Ali_ibn_Isa_al-Asturlabi type NaturalPerson.
- Ali_ibn_Isa_al-Asturlabi type Thing.
- Ali_ibn_Isa_al-Asturlabi type Person.
- Ali_ibn_Isa_al-Asturlabi comment "ʿAlī ibn ʿĪsā al-Asṭurlābī (Arabic: علي بن عيسى) was an Afro-Arab[citation needed] astronomer and geographer of the 9th century. 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, or the circumference of the Earth.".
- Ali_ibn_Isa_al-Asturlabi label "Ali ibn Isa al-Asturlabi".
- Ali_ibn_Isa_al-Asturlabi sameAs m.0lxpy.
- Ali_ibn_Isa_al-Asturlabi sameAs Q17050576.
- Ali_ibn_Isa_al-Asturlabi sameAs Q17050576.
- Ali_ibn_Isa_al-Asturlabi wasDerivedFrom Ali_ibn_Isa_al-Asturlabi?oldid=579961559.
- Ali_ibn_Isa_al-Asturlabi givenName "Ali Ben".
- Ali_ibn_Isa_al-Asturlabi isPrimaryTopicOf Ali_ibn_Isa_al-Asturlabi.
- Ali_ibn_Isa_al-Asturlabi name "Ali Ben Isa".
- Ali_ibn_Isa_al-Asturlabi name "Isa, Ali Ben".
- Ali_ibn_Isa_al-Asturlabi surname "Isa".