Zīj-i Khāqānī dar takmīl-i Zīj-i Īlkhānī
Title (arabic) |
زيج خاقاني در تكميل زيج إيلخانی
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Title (translit) |
Zīj-i Khāqānī dar takmīl-i Zīj-i Īlkhānī
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Alias |
Zīj-i Khāqanī
Zīj-i Khāqanī dar takmīl-i zīj-i īlkhānī (Kāshī)
زيج خاقاني
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Author |
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Language |
Persian-Farsi
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Subject |
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Text type |
Revision
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Version of |
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Notes |
Al-Kāshī (d. 1429) presented his Zīj-i Khāqānī dar takmīl-i Zīj-i Īlkhānī (Khāqānī Tables Complementing the Ilkhanid Tables) to Ulugh Beg upon his arrival in Samarqand. Despite his criticism of Ṭūsī’s Zīj-i Īlkhānī, Kashi adopted its planetary mean motion parameters in his zīj. The treatise consists of an introduction and 6 sections (organized in 3 parts: a technical glossary of terms used in the treatise; explanation of operations; and proofs of these operations). See also the Zīj of Ulugh Beg. In the preface, Ulugh Beg specifically names Kāshī, Qāḍīzāde, and ʿAlī Qushjī as contributors. |
ismi_id |
74283
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Manuscript Witnesses
27 witnesses:Literature References
Pp. 127-8 (no. 20).
P. 157 (G48), 2.1.20.
Pp. 270-1 (no. 802), A1.
Vol. 5, p. 1282. Details witnesses located in repositories in Qum, Rasht, and Tehran.