Abstract
Mirzo Ulugbek (1394-1449) is a famous astronomer and mathematician of Central Asia who lived in the 15th century, ruler of the Timurid dynasty. Born in Sultaniya, Iran, and raised in Samarkand, Ulughbek was the grandson of Amir Temur , known for his contributions to science and art during his reign. Among his notable achievements was the construction of the Ulugbek observatory in Samarkand, where he conducted astronomical resources and calculations, greatly improving knowledge in this field. His star catalog Ziz-i Sultani meticulously recorded the positions of more than 1,000 stars and remains one of the most accurate star catalogs of the medieval period. Ulugbek's activities in trigonometry and astronomy have influenced the scientific thinking of centuries and have a lasting impact.
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