A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Alī ibn ʿĪsā al-Asṭurlābī | |
---|---|
علي بن عيسى | |
Born | before 858 |
Academic work | |
Era | Islamic Golden Age |
Main interests | Geography, astronomy |
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]
References
- ^ Bolt 2007, p. 34.
- ^ Mercier 2008, p. 966.
Sources
- Bolt, Marvin (2007). "ʿAlī ibn ʿĪsā al-Asṭurlābī". In Hockey, Thomas; et al. (eds.). Biographical Encyclopedia of Astronomers. Springer Publishers.
- Mercier, Raymond (2008). "Geodesy". In Selin, Helaine (ed.). Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Vol. 1 (2nd ed.). Berlin: Springer Nature. ISBN 978-14020-4-559-2.
Further reading
- ʿAlī ibn ʿĪsā al-Asṭurlābī, Kitāb al-ʿamal bi-l-asṭurlāb , ed. by P. Louis Cheikho : "'Kitāb al-ʿamal bi-l-asṭurlāb li-ʿAlī ibn ʿĪsā", in: al-Mashriq 16 (1913), pp. 29–46; transl. German by Carl Schoy, "ʿAlī ibn ʿĪsā, Das Astrolab und sein Gebrauch", in: Isis 9 (1927), pp. 239–254.
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