Nicolai Copernici Torinensis de revolutionibus orbium coelestium libri VI .. (1543)
Copernicus, Nicolaus, 1473-1543, Petrejus, Johannes, 1497-1550, printer, Poccianti, Michele, 1535-1576, former owner, SS. Annunziata (Church : Florence, Italy), former owner · Norimbergae : Apud Ioh. Petreium · leaf 65
centro f, 6i eadem ratione B G dimidia fubtendentis duplum latus b a, 6^ d k femifsis fubten dentis duplam d E,fiue angulum dupli a, ate^ d f dimidia diamc - tri fphserse. Patet igitur,qu6d fubtefa dupli ipfius a B,ad fubten fam dupli b c , eft ficut dimetiens ad eam quas duplum anguli a, fiue… … aut qui opponitur redo,ut b c. Sit ergo pri« mum a b latus datum, ^ fado in cpolo deferibatur circumferen f i) ciama«
Astronomy
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