Najm al-Din al-Katibi al-Qazwini · Islam Museum

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Depth

At a glance

Roles: Scholar · writer
Era: The Mongol and Post-Mongol Era
Region: Persia & Central Asia
Identifiers: Wikidata
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Astronomy and timekeeping Philosophy and logic

The long-form text for this entry has not been written yet. The facts and connections below come from the museum's data.

People and things also explored

The planets' reign and the world's cycles· Al-Abhari, Athir al-Din al-Mufaddal ibn Umar· Umar Khayyam· Sharaf al-Dawla's observatory at Baghdad· Qibla-finding by stars, winds, mountains and rivers· Sizes of the heavenly bodies· Distances of the heavenly bodies from the Earth· The seven climates

Sources

al-Alam — al-Zirikli

Cite this page

islam.museum contributors. “Najm al-Din al-Katibi al-Qazwini”. islam.museum, https://islam.museum/en/person/najm-al-din-al-katibi/. CC BY-SA 4.0. Last updated 2026-10-19.

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People

Prophets, companions, scholars, rulers, scientists, poets, travelers: women and men who shaped the story. Related

The planets' reign and the world's cycles

The astronomers' doctrine of world-cycles: Virgo now reigns 7,000 years — this world's age — Jupiter assisting; when the governing planet completes its full course the world ends, the cycle returns to the first, persons and forms recur with their matter, and so forever — Aries' reign 12,000 years, Taurus' 11,000.