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Ptolemaeus Arabus et Latinus

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Work C.1.5

Commentary on the Almagesti minor


‘(Florence, BR, 885) [text] Almagesti [title in upper margin]. Omnium recte phantium (!) verisimilibus coniecturis etc. [followed by about 15 lines left blank]. Data circuli diametro latera decagoni, pentagoni, exagoni… [proof] Sit circulus abg cuius diametri adg centri d — sit medians celum notum et t oriens quod erit notum per 18am huius secundi. a sit…’


A commentary on the first two books of the Almagesti minor (C.1.3) with original proofs. As it stands in the only known MS (Florence, BR, 885), the work is incomplete, ending abruptly in the middle of a sentence at the bottom of f. 123v.


The commentary is anonymous. The only known MS was copied around 1300, perhaps in northern Italy (Padua?), where the MS was by the second half of the 14th c.


R. Lorch, ‘Some Remarks on the Almagestum parvum’, in Amphora. Festschrift für Hans Wussing zu seinem 65. Geburtstag, eds S. S. Demidov, M. Folkerts et al., Basel-Boston-Berlin, 1992, 407-438: 419; H. Zepeda, The First Latin Treatise on Ptolemy’s Astronomy: The Almagesti minor (c. 1200), Turnhout, 2018, 88-89.