# Anonymi summaria ratio geographiae in sphaera intelligendae 10

Anonymous, Anonymi summaria ratio geographiae in sphaera intelligendae, II. τῶν τῆς ἡμέρας διαφορῶν.. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/anonymous/anonymi-summaria-ratio-geographiae-in-sphaera-intelligendae/10

10. Πάλιν οὖν ἔστω κύκλος οὐράνιος ὁ A B Γ Δ, γῆ δὲ τὸ ἐντὸς, πλάτος δὲ τοῦ ζωδιακοῦ τὸ Ε E καὶ Θ. H πλὴν ταττέσθω ἡ A Γ βόρειον καὶ νότιον, ἡ δὲ B Δ. δυτικὸν καὶ ἀνατολικὸν, ὡσαύτως καὶ ἡ μὲν E II θερινὸς τροπικὸς, ἡ δὲ ΖΘ χειμερινός. Ὑποθώμεθα τοίνυν ἀνιόντα τὸν ἥλιον ἐπὶ τὰς θερινὰς τροπὰς, ἢ ἀπιόντα τὰς χειμερινάς· ἀνάγκη τὸ ἡμισφαίριον φωτίζειν, ὅπου ἂν καὶ ἐστι. Καὶ ὅρα μοι τὰς ἀπὸ τοῦ ΕΖ καὶ ΗΘ ἐκβαλλομένας γραμμὰς, καὶ ὅσον τὸ περιττεῦον τῷ βορείῳ ἢ τῷ νοτίῳ ἐννόησον. Οὕτω γὰρ ποιῶν ῥᾳδίως δυνήσῃ γνῶναι τὴν ἑκάστου διαφοράν. Ταὐτὸν οὖν διῖ νοεῖν ἐφ᾿ ὅλῳ τῷ πόλῳ. Ἰδού σοι καὶ τούτου τὴν λύσιν ὡς ἦν δυνατὸν ἐν ἐπιπέδῳ νοῆσαι παραδεδώκαμεν, εὐκολωτέρως δ᾿ ἂν εἶχες νοῆσαι, εἰ τὴν οἰκουμένην κατεσκευάσαμεν.

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Anonymous, Anonymi summaria ratio geographiae in sphaera intelligendae, ed. Karl Müller. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg2029.tlg001.local001/.