{"schemaVersion":2,"id":"tlg1799.tlg013.local001","url":"https://thegreeklibrary.org/works/tlg1799.tlg013.local001/","urn":"urn:cts:greekLit:tlg1799.tlg013.local001","title":"Phaenomena (recensio b)","titleGreek":null,"alternateTitles":[],"author":"Euclid","authorityName":"EUCLIDES Geom.","authorUrl":"https://thegreeklibrary.org/authors/tlg1799-euclides-geom/","authorityUrl":"https://thegreeklibrary.org/authors/tlg1799-euclides-geom/","editors":["Heinrich Menge"],"publication":{"digitalPublisher":"Harvard College Library","sourceTitle":"Euclidis Opera Omnia","edition":null,"publisher":"Leipzig","place":"Teubner","date":"1916","volume":"8","series":null,"citation":null,"citationShort":null},"rights":{"text":"Available under a Creative Commons Attribution-ShareAlike 4.0 International License","url":"https://creativecommons.org/licenses/by-sa/4.0/"},"provenance":{"authority":"Harvard College Library","sponsors":["Harvard College Library"],"funders":["Harvard Library Arcadia Fund"],"principal":"Gregory Crane","responsibilities":[{"role":"Corrected and encoded the text","names":[]},{"role":"Editor-in-Chief, Perseus Digital Library","names":[]},{"role":"Project Manager (University of Leipzig)","names":[]},{"role":"Project Assistant (University of Leipzig)","names":[]},{"role":"Lead Developer (University of Leipzig)","names":[]},{"role":"Technical Advisor","names":[]}]},"corpus":{"version":"2.2.0","date":"2026-08-29"},"revisionDate":"2026-08-15","sourceUrl":"https://archive.org/stream/euclidisoperaomn08eucluoft#page/106/mode/2up","sourceLinkType":null,"sourceRights":null,"citation":"Euclid. Phaenomena (recensio b). ed. Heinrich Menge. Euclidis Opera Omnia, Teubner, Leipzig, 1916. urn:cts:greekLit:tlg1799.tlg013.local001","excerpt":"ιϚ ΄. Τοῦ τῶν ζῳδίων κύκλου αἰ ἴσαι περιφέρειαι οὐκ ἐν ἴσῳ χρόνῳ ἐξαλλάσσουσι τὸ ἀφανὲς ἡμισφαίριον, ἀλλʼ ἐν πλείονι χρόνῳ ἀεὶ ἡ ἔγγιον τοῦ χειμερινοῦ τροπικοῦ τῆς ἀπώτερον, ἐν ἴσῳ δὲ αἰ ἴσον ἀπέχουσαι ὁποτεροσοῦν τῶν συναφῶν. ἔστω ἐν κόσμῳ ὁρίζων ὁ ΑΒΓ, καὶ θερινὸς μὲν τροπικὸς ἔστω ὁ ΑΒ, χειμερινὸς δὲ τροπικὸς ἔστω ὁ ΓΤ, ὁ δὲ τῶν ζῳδίων κύκλος θέσιν ἐχέτω τὴν ΑΓΕ, καὶ ἀπειλήφθωσαν ἴσαι περιφέρειαι αἰ ∠Ε, ΕΖ λέγω, ὅτι αἱ ∠Ε, ΕΖ οὐκ ἐν ἴσῳ χρόνῳ ἐξαλλάσσουσι τὸ ἀφανὲς ἡμισφαίριον, ἀλλʼ ἐν πλείονι ἡ ∠Ε περιφέρεια τῆς ΕΖ περιφερείας. ἀπειλήφθωσαν γὰρ ταῖς ∠Ε, ΕΖ περιφερείαις ἴσαι τε καὶ ἀπεναντίον περιφέρειαι αἱ ΗΘ, ΘΚ· αἱ ΗΘ, ΘΚ ἄρα περιφέρειαι οὐκ ἐν ἴσῳ χρόνῳ ἐξαλλάσσουσι τὸ φανερὸν ἡμισφαίριον, ἀλλʼ ἐν πλείονι ἡ ΗΘ τῆς ΚΘ ἀλλʼ ἐν ᾧ μὲν χρόνῳ ἡ ΗΘ ἐξαλλάσσει τὸ φανερὸν ἡμισφαίριον, ἡ ∠Ε τὸ ἀφανές, ἐν ᾧ δὲ ἡ ΘΚ τὸ φανερὸν ἡμισφαίριον ἐξαλλάσσει, ἡ ΕΖ τὸ ἀφανές· αἱ ∠Ε, ΕΖ ἄρα…","divisions":[{"label":"Recensio b.","url":"https://thegreeklibrary.org/works/tlg1799.tlg013.local001/#tlg1799-tlg013-local001-1"}],"formats":{"html":"https://thegreeklibrary.org/works/tlg1799.tlg013.local001/","json":"https://thegreeklibrary.org/api/works/tlg1799.tlg013.local001.json","compressedReadingDocument":"https://thegreeklibrary.org/works/tlg1799/tlg013/local001.json.gz"}}