Apian, Peter, 1495-1552, Ptolemy, active 2nd century, Gherardo, da Cremona, 1113 or 1114-1187, Geber, active 13th century. De astronomia libri IX, Duhem, Pierre Maurice Marie, 1861-1916. fmo RIBRL · Norimbergae : Apud Io. Petreium · leaf 122
34 Astronomiae Geeri … n notus. Ponamus ergo de partibus quarta quamcuncp parte uo* luerimus,^ inquiramus quantitatem anguli qui prouemt apud eam, ponamus ergo orbem fignora circulu aeg,& circulu me- ridiei circulum ab g ,& circulu aquatoris diei circulum b e d, 8£ fit ptmdn e pundum autumnale,& fit pundu a de orbe…
Mathematics · Astronomy · Astronomy, Arab · Astronomical instruments · Spherical astronomy · Scientific apparatus and instruments · Imprint 1534
Internet Archive · John Carter Brown Library · Public domain (published before 1931). Free to use for anything.
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