Ptolemaeus Arabus et Latinus

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Ptolemy, Almagesti (tr. Stephanus Gracilis)

Paris, Gulielmus Cavellat, 1556 · 62r

62] misnumbered ‘61’ P quae in proposito loco fuerit, horam, ut eam colligamus, quae quaesito in loco eodem spectatur tempore. Fiet autem aequinoctialium temporum accessio, si propinquior orienti quaesitus fuerit locus, sin occidenti, imminutio.