Abstract: A treatise on astronomy.Binding note: Limp binding of blue paper with a silver design. Tan paper pastedowns. Strip of brown leather along the spine.Ms. codex.Title from title page (fol. 1a).A few marginal notes. Title written on front cover.Collation: Paper ; fol. 11 ; catchwords ; modern foliation in pencil using Western numerals.Layout: 21 lines per page.Description: Rubricated ; watermarks (anchor) ; MS in good condition but mended and stained with dampness.Origin: According to colophon copied 10?? by ʻAbd al-Raḥman? al-Ṭūlūnī (fol. 11b).Incipit: بسم الله ... الذي خص من شاء بماشاء کيف شاءColophon: فخرج من القسمة. وهذا اخر ما وجد بخط المؤلف رحمه الله ونفعنا ببرکته. عبدالرحمن الطولوني سنة 1029