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triquetrum · Vinony

EntityQ1258152· pop 17· linked from 253 articles

triquetrum

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medieval name for an ancient astronomical instrument

Connections

astronomy in medieval Islam

Muḥammad ibn Ibrāhīm al-Fazārī

Nicolaus Copernicus

Muḥammad ibn Musa al-Khwarizmi

Islamic calendar

Categories

Ancient Greek astronomy Astrometry Astronomical instruments Obsolete scientific instruments

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What links here253 pages

Menelaus of Alexandria

Ptolemy's inequality

Shams al-Din al-Khafri

Abu Ma'shar al-Balkhi

Ibn al‐Ha'im al‐Ishbili

Muḥammad ibn Ibrāhīm al-Fazārī

Michel Ferdinand d'Albert d'Ailly

astronomy in medieval Islam

Al-Ḥajjāj ibn Yūsuf ibn Maṭar

armillary sphere

Abu Said Gorgani

Islamic calendar