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16th century woodcut of measurement of a building's height with an astrolabe. The 10th century astronomer ʿAbd al-Raḥmān al-Ṣūfī wrote a massive text of 386 chapters on the astrolabe, which reportedly described more than 1,000 applications for the astrolabe's various functions. [2]
Al-ʻIjliyyah bint al-ʻIjliyy (Arabic: العجلية بنت العجلي) [1] was a 10th-century maker of astrolabes active in Aleppo, in what is now northern Syria. [ 2 ] [ 3 ] She is sometimes known in modern popular literature as Mariam al-Asṭurlābiyya ( Arabic : مريم الأسطرلابية ) but her supposed first name 'Mariam' is ...
Muḥammad ibn ʿAbd Allāh Nasṭūlus (Arabic: محمد بن عبد الله نسطولس; known as Nasṭūlus, but also referred to as Basṭūlus) was a 10th century astronomer. He is known for making one of the oldest surviving astrolabes , dated 927/928, [ 2 ] as well as of another partially preserved astrolabe that bears his signature ...
Mid-17th century astrolabe inscribed with Quranic verses and Persian poetry as well as technical information, with five interchangeable plates corresponding to the latitudes of major cities. The astrolabe was arguably the most important instrument created and used for astronomical purposes in the medieval period.
Eighth-century mathematician Muhammad al-Fazari is the first person credited with building the astrolabe in the Islamic world. [ 30 ] The mathematical background was established by Muslim astronomer Albatenius in his treatise Kitab az-Zij (c. 920 AD), which was translated into Latin by Plato Tiburtinus ( De Motu Stellarum ).
Lupitus of Barcelona, identified with a Christian archdeacon called Sunifred, was an astronomer in late 10th century Barcelona, then part of the Marca Hispanica, the borderland of Christian France fronting Islamic al-Andalus.
The characters are identical to those used at the end of the 10th century in the Catalan Latin manuscripts, being Catalonia in that moment a mark of the Carolingian France. This would explain the presence of the word FRANCIA. The figures express in degrees and minutes: 41° 30′, which correspond exactly to the latitude of Barcelona.
10th century – Large astrolabe of diameter 1.4 meters constructed by Ibn Yunus [5] 994 – First sextant constructed in Ray, Iran, by Abu-Mahmud al-Khujandi. It was a very large mural sextant that achieved a high level of accuracy for astronomical measurements. [6]