Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665

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              lum diurnum majorem deſcribat, eam Iupiter haud dubiè antecedit, &
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              poſt ſe relinquit, versùs ortum; & perinde illa ſe habet, quò ad apparen­
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              tem motum, atque ſi versùs ortum ſeu versùs T à Iove diſcedens move­
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              retur: Itaque, ſi ſupponamus, vna cum Iove, moveri rectas EA, FG, cir­
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              ca idem Mundi centrum, quartam Mediceam ab A versùs T, appatenti &
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              æquabili motu, ire neceſſe eſt. </s>
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              <s id="s.002599">Cum verò ab Apogæo A, ad mediocrem diſtantiam D motu accelera­
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              to feratur, ſit datum tempus, quo ab A perveniret in T, ſi hoc dumtaxat
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              motu accelerato, item quo perveniret in T, ſi primo illo dumtaxat æqua­
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              bili moveretur, haud dubiè ſi vtroque ſimul, mixto ſcilicet ex æqua­
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              bili per AT, & accelerato per AD, dato illo tempore, perveniet in F, per
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              ſemiparabolam ACF, cujus axis eſt AD, & baſis DF. </s>
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              <s id="s.002600">Si autem datum illud tempus in duo tempora æqualia dividatur; cer­
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              tè primo tempore, totius prioris dimidio, motu accelerato, acquiret AB,
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              quæ eſt
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              . </s>
              <s id="s.002601">AD, iuxta doctrinam motuum; & ducta applicata BC, cum
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              perpendiculari NC, motu illo æquabili æquiret AN, dimidiam AT,
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              vel DF ; quia vt AD ad AB, ita Quadratum DF ad Quadratum BC ;
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              igirur motu mixto ex vtroque, acquiret AC; ſecundo verò tempore, pri­
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              mo motu acquiret, BD altero NT, mixto ex vtroque CF, demiſſa por­
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              rò perpendiculati NCS, licet Medicea ſit reverà in C, tranſacto primo
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              tempore, videtur tamen in S ; quia hæc in eodem proximè cum Iove pla­
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              no movetur; igitur ita re videtur apparenti motu per rectam DF, ſcilicet
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              proximè, vt temporibus æqualibus, æqualia ferè ſpatia decurrat, quod certè
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              noſtris obſervationibus toties repetitis mirificè conſentit. </s>
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              <s id="s.002602">Vbi autem Medicea pervenit in F,
                <expan abbr="æqualẽ">æqualem</expan>
              cum Iove orbem decurrit; igi­
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              tur æquè citò, nec ab eo vltra regreditur; quia tamen ab hac mediocri
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              diſtantia, tendit ad Perigæum E, motu retardato, circulum diurnum, diurno
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              Iovis minorem deſcribere incipit; citiùs igitur illum abſolvit; vnde ver­
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              sùs occaſum, ad Iovem accedat, neceſſe eſt; & cum juxta doctrinam mo­
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              tuum, quo tempore, motu naturaliter accelerato, datum ſpatium decurri­
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              tur, æquale huic, retardato percurratur; certè, quo tempore ab A pervenit
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              in F, motu mixto ex accelerato & æquabili, ab F pervenit in E motu mix­
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              to ex retardato & æquabili; & quo tempore à C pervenit in F, & ab A in
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              C; ab F pervenit in Z, & à Z in E, quod eſt Perigæum; eodem modo ab E
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              pervenit in G, mixto ex accelerato & æquabili, & à G in A mixto ex re­
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              tardato & æquabili. </s>
              <s id="s.002603">Sic habes duas Parabolas AFEG, communi baſi
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              FG. </s>
              <s id="s.002604">Sed vt aliquid de calculatione Iovialium dicam: ſuppono; integram
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              revolutionem quartæ Mediceæ abſolvi diebus 16. hor.19.min.12. ſeu mi­
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              nutis 24192. accipio quartam partem, ſcilicet 6043. quibus ab A venit in
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              F. ſuppono igitur DF diviſam in partes æquales 6048. item DG; ſuppo­
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              no demum certam Epocham, id eſt certum temporis punctum, quo Medi­
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              ceam eſſe in Apogæo A, conſtet; & ab eo tot dies fluxiſſe, puta 7. id eſt
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              min. 10080. divido hunc numerum per 6043. & venit quotiens I cum re­
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              ſiduo 4032. Vnde colligo, Mediceam decurriſſe ſemel DF, & ab F versùs
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              D, confeciſſe 4032. partes, quibus ſubtractis ex 6048. ſuperſunt 2016.hæc </s>
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