{"schemaVersion":2,"id":"tlg1719.tlg003.local001","url":"https://thegreeklibrary.org/works/tlg1719.tlg003.local001/","urn":"urn:cts:greekLit:tlg1719.tlg003.local001","title":"De diebus et noctibus","titleGreek":null,"alternateTitles":[],"author":"Anonymous","authorityName":"THEODOSIUS Astron. et Math.","authorUrl":null,"authorityUrl":"https://thegreeklibrary.org/authors/tlg1719-theodosius-astron-et-math/","editors":[],"publication":{"digitalPublisher":"Corpus local","sourceTitle":null,"edition":null,"publisher":null,"place":null,"date":null,"volume":null,"series":null,"citation":"De diebus et noctibus, ed. Fecht, op. cit., 54–154. Cod: 18,131: Astron., Math.","citationShort":"De diebus et noctibus, ed. Fecht, op. cit., 54–154."},"rights":{"text":"Document TEI P5 local en UTF-8.","url":null},"provenance":{"authority":null,"sponsors":[],"funders":[],"principal":null,"responsibilities":[]},"corpus":{"version":"2.2.0","date":"2026-08-29"},"revisionDate":"2026-08-29","sourceUrl":"https://maximus.tlg.uci.edu/canon.php","sourceLinkType":"catalogue","sourceRights":null,"citation":"De diebus et noctibus. De diebus et noctibus, ed. Fecht, op. cit., 54–154.. urn:cts:greekLit:tlg1719.tlg003.local001","excerpt":"τινα περιφέρειαν τῆς ΜΞ διελεύσεται. Διερχέσθω τὴν ΜΟ· νυκτὸς ἄρα χρόνος ἐστίν, ἐν ᾧ ὁ ἥλιος τὴν ΜΟ περιφέρειαν διαπορεύεται. Ἀλλὰ καὶ νυκτὸς χρόνος ἐστίν, ἐν ᾧ ὁ ἥλιος τὴν ΚΛ διαπορεύεται, καὶ ἔστιν ἐλάσσων ἡ ΚΛ τῆς ΜΟ· καὶ ἡ νὺξ ἄρα, ἧς δύσις μέν ἐστι τὸ Κ, ἀνατολὴ δὲ τὸ Λ, ἐλάσσων ἐστὶ τῆς νυκτός, ἧς δύσις μέν ἐστι τὸ Μ, ἀνατολὴ δὲ τὸ Ο. Ὁμοίως δὴ δείξομεν, ὅτι καὶ ἀπὸ χειμερινῶν τροπῶν τοῦ ἡλίου πορευομένου τὰ ἐναντία συμβήσεται· καὶ γὰρ τὰ μεταξὺ τμήματα τοῦ θερινοῦ τροπικοῦ καὶ τοῦ ἰσημερινοῦ ἴσα ἐστὶν τοῖς ὑπὸ γῆν τμήμασι τοῖς μεταξὺ τοῦ τε ἰσημερινοῦ καὶ τοῦ χειμερινοῦ, καὶ τοῖς 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