ʿABD-AL-QĀDER ḤASAN RŪYĀNĪ, 10th/16th century astronomer. Apparently from Ṭabarestān, he seems to have served the rulers of Gīlān; he dedicated his Zīǰ-e molaḵḵaṣ-e Mīrzāʾī (“Compendious astronomical tables for Mīrzā,” composed in 891/1486) to Sultan Mīrzā ʿAlī (1478-1505) and his al-Toḥfat al-neẓāmīya (“The Neẓām’s gift”) to Sultan Yaḥyā Kīā. In the latter work, the first thirty sections (faṣl) out of a total of forty are a commentary of Naṣīr-al-dīn Ṭūsī’s Sī faṣl. ʿAbd-al-Qāder also wrote a Moḵtaṣar dar maʿrefat-e taqvīm (“Epitome of knowledge of the calendar”) and a Resālat al-kora (“Epistle on the sphere”).

Bibliography : Storey, II/1, no. 114, p. 78.

(D. Pingree)

Originally Published: December 15, 1982

Last Updated: July 14, 2011

This article is available in print.
Vol. I, Fasc. 2, p. 134

Cite this entry:

David Pingree, “'Abd-Al-Qader Ruyani,” Encyclopædia Iranica, I/2, p. 134; an updated version is available online at http://www.iranicaonline.org/articles/abd-al-qader-ruyani (accessed on 16 January 2014).