ʿAlāʾ al-Dīn ʿAlī ibn Ibrāhīm ibn al-Shāṭir

E1019824

ʿAlāʾ al-Dīn ʿAlī ibn Ibrāhīm ibn al-Shāṭir was a 14th-century Syrian astronomer and timekeeper whose innovative planetary models anticipated key features of the later Copernican system.

All labels observed (2)

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Statements (48)

Predicate Object
instanceOf Syrian person
astronomer
medieval scientist
timekeeper
activeIn Damascus astronomical tradition
aimedAt improving accuracy of prayer times
improving astronomical tables for practical use
improving qibla determination
birthPlace Damascus
Mamluk Sultanate
centuryOfActivity 14th century
citizenship Mamluk Sultanate
corrected Ptolemaic planetary parameters
Ptolemy’s lunar model
Ptolemy’s solar model
deathPlace Damascus
designed astronomical instruments
sundials
water clocks
developed geocentric planetary models using epicycles and eccentrics without equants
improved lunar theory
improved solar theory
employer Umayyad Mosque of Damascus
era Islamic Golden Age (late phase)
linked to: Islamic Golden Age
fieldOfWork astronomical instrumentation
astronomy
mathematical astronomy
timekeeping
givenName ʿAlāʾ al-Dīn ʿAlī
influenced Nicolaus Copernicus
later European astronomy
knownFor anticipating mathematical features of the Copernican system
innovative planetary models
non-Ptolemaic lunar model
non-Ptolemaic solar model
planetary models without the Ptolemaic equant
languageOfWork Arabic
name Ibn al-Shāṭir
linked to: Ibn al-Shatir
notableWork Nihāyat al-Sūl fī Taṣḥīḥ al-Uṣūl
Zīj al-Jadīd (New astronomical handbook)
occupation astronomer
muwaqqit
patronymic ibn Ibrāhīm
placeOfActivity Damascus
positionHeld chief muwaqqit of the Umayyad Mosque in Damascus
religion Islam
usedModelType geocentric cosmology
workLocation Umayyad Mosque of Damascus

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ibn al-Shatir fullName ʿAlāʾ al-Dīn ʿAlī ibn Ibrāhīm ibn al-Shāṭir
Nihāyat al-sūl fī taṣḥīḥ al-uṣūl authorNameInFull ʿAlāʾ al-Dīn Abū al-Ḥasan ʿAlī ibn Ibrāhīm ibn al-Shāṭir
linked to: ʿAlāʾ al-Dīn ʿAlī ibn Ibrāhīm ibn al-Shāṭir