Delfino, Federico
,
De fluxu et refluxu aquae maris
,
1559
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æſtiuum iudicauit Ptolomæus; & propter hoc eas moueri
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uerſus orientem, uidelicet ſecundum ſucceſſionem ſignorum
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eclipticæ fixæ ſcilicet nonæ. </
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>uerum eſt tam quod propter æ
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quationem octauæ ſphæræ tunc decreſcente, quia ſectio ecli
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ptica octauæ ſphæræ cum æquinoctionali mouebantur tem
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pore ſuo per eclipticam octauæ ſphæræ uerſus occidentem
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appropinquando ſtellis fixis, quæ erant uerſus occidentem
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ab ea, & elongando ſe à ſtellis fixis, quæ erant uerſus orien
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tem ab ea, uiſæ ſunt Ptolomæo ſtellæ ipſæ moueri uerſus o
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rientem ſecundum ſcilicet ſucceſſionem ſignorum: eo quia
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Ptolomæus putabat interſectionem eclipticæ octauæ ſphæræ
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cum æquinoctionali eſſe interſectionem eclipticæ fixæ nonæ
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ſcilicet ſphæræ: quia ſolam eclipticam nonæ ſphæræ imagina
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batur, quam interſectionem ſemper fixam exiſtimabat, & pu
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tabat eam eſſe caput arietis zodiaci nonæ ſphæræ, ſeu primi
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mobilis. </
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>Purbachius autem triplicem motum octauæ ſphæræ
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ineſſe dixit: unum quidem à primo mobili, ſeu decima ſphæ
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ra diurnum, ſcilicet quòd in una die naturali octauæ ſphæræ
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cum aliis ſphæris inferioribus ei ſemel ſuper polis totius ma
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chinæ mundi reuoluitur: alium à nona ſphæra, quæ ſecundum
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mobile uocauit; quo motu nonæ ſphæræ, octaua ſphæra cum
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aliis ſphæris inferioribus mouetur omnibus 69200 annis per
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unum gradum, et XXVIII min. uerſus orientem regulari
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ter contra motum decimi orbis, ſeu primi mobilis ſuper po
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lis zodiaci nonæ ſphæræ exiſtentibus ſemper directo ſub polis
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zodiaci decimæ, ſeu primi mobilis, adeo quòd zodiacus no
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næ ſphæræ ſemper eſt directus ſub zodiaco decimæ, ſeu primi
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mobilis, & ecliptica nonæ ſphæræ ſemper ſub ecliptica deci
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mæ, taliter quòd ſuperficies eclipticæ decimæ, ſeu primi mo
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bilis, tanquam pars in toto, nuſquam ab ea declinans, & iſte
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motus nonæ ſphæræ datus octauæ, & aliis ſphæris inferiori
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bus, octauæ appellatur motus augium, & ſtellarum fixarum
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in tabulis: quia ad iſtum motum nonæ ſphæræ dictum octa
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uæ, & aliis ſphæris inferioribus octauæ, mouetur octauæ ſphæ
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ra cum ſtellis fixis, quæ ſunt in ea, &
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