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Bgag · CC0Samarkand · Monument
Ulugh Beg Observatory
The remains of a 15th-century observatory where Ulugh Beg charted the stars.
Key facts
Period: 1428–1429
- Built around 1428–1429 by the ruler and astronomer Ulugh Beg.
- Its star catalogue, the Zij-i-Sultani, was completed in 1437.
- The surviving part is the underground section of a giant sextant.
Information is curated from public historical sources.
Location
39.6756, 66.9906
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