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

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            <pb pagenum="217" xlink:href="025/01/231.jpg"/>
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              <s id="s.002616">Septimò, Præterea dum ex puncto A primum emergeret, ac deinde ar­
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              cum HS, decurreret, qui continet Diametrum 1 1/5. ac denuo immergere­
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              tur in puncto S, ac proinde tunc diſtaret à centro Iovis, Diametr. 1 1/5. dato
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              quod AK eſſet 11. Diametror. </s>
              <s id="s.002617">at ſecus accidit obſervanti; illud enim ſe­
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              cundæ immerſionis punctum à centro Iovis minùs diſtabat. </s>
              <s id="s.002618">Obſervatio ce­
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              lebris fuit Die 23. Septembr. hujus Anni 1664. Hor.poſt Merid.6. min.46.
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              circiter: vbi enim aſpexi quartam Mediceam ex vmbra primùm emergen­
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              tem, illa haud dubiè à Iovis centro vix diſtabat Diametr. 1 1/2. tum au­
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              tem aderant, præter Euſtachium noſtrum, duo viri præſtantiſſimi, & rerum
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              iſtarum peritiſſimi, ſcilicet D. </s>
              <s id="s.002619">Ciampinus & D. Lucius. </s>
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              <s id="s.002620">Octavò, Hinc autem axem parabolæ, quam Epicycli loco ſubſtitui poſ­
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              ſe, jam ſupra ſignificavi, habere poſſum; aſſumpta enim AC Diametr. 1 1/2.
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              & ducta CT parallela AG, ſit vt AE ad AC, ita hæc ad tertiam, ſitque
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              vt differentia hujus tertiæ & AE, ad CT, ita AE ad AX, hæc eſt axis
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              Parabolæ; eſt autem AC ad CT, vt BD ad DL. pro aliis Mediceis, ea­
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              dem ratio facit. </s>
            </p>
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              <s id="s.002621">Nonò, Scio, eſſe nonnullos, qui excentricos adhibent, quorum centrum
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              ſit versùs ortum, vel occaſum; ſed profectò maxima digreſſio æqualis vtrim­
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              que ſemper à me obſervata eſt, ejuſdem ſcilicet Mediceæ. </s>
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              <s id="s.002622">Decimò, Quod ſpectat ad latitudinem Medicearum, certò conſtat, ex
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              obſervationibus, eas non videri ſemper in eadem linea, per centrum Iovis
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              ducta, id eſt, in eodem plano Iovialis orbitæ; vnde aliqui epicyclos adhi­
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              bent, à prædictæ orbitæ plano declinantes; ſed, ni fallor, perperam; cum
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              ſæpè accidat, eandem Mediceam in eadem à centro Iovis diſtantia, ſive ad
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              ortum, ſive ad occaſum, modò versùs Boream, modò versùs Auſtrum decli­
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              nare, modò in linea, per centrum Iovis ducta, abſque vlla declinatione, ſi­
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              tam eſſe: hoc autem ex eo procedit, quod Medicea niſum exerat, adhoc vt
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              ſemper in eo plano verſetur, ac proinde ratione motus accelerati & retar­
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              dati, lineam ſuperet, & modò huc, modò illuc declinet: ſed hujus declina­
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              tionis limes nondum perſpectus eſt, nec periodus comperta; quare accu­
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              ratiori opus eſt indagine. </s>
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              <s id="s.002623">Vndecimò, Medicea non movetur in Epicyclo, reali motu, quod facilè
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              demonſtratur; ſit enim quarta Medicea in Apogæo G.movetur versùs or­
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              tum, & diurno motu acquirit in linea AE Diametros Iovis 2 1/2.id eſt min.2.
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              ſec.4ò. </s>
              <s id="s.002624">Iupiter verò ſingulis annis, ortum versùs acquirit 30.grad.circiter
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              ſingulis menſibus grad. 2. 3ò, ſingulis diebus min. 5. igitur Medicea
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              primo die recederet à Iovis centro min. 2. 2ò, versùs occaſum: de­
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              fertur, inquies, à Iove centrum Epicycli; ſed profectò deferri nequit, niſi
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              ſolidum ſupponas: annulum fortè ſolidum accerſes, cui Medicea affixa ſit,
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              vt in Saturno; fateor, hoc dici poſſe, modò dictus annulus nihil prorſus lu­
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              minis reflectat; obſtat tamen allata ſupra ſpatiorum æqualium motu diur­
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              no acquiſitorum ratio, niſi parabolam ponas. </s>
              <s id="s.002625">Sed longè facilius dictu eſt,
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              Iovem & Mediceam æquali motu moveri, eoque ſimpliciſſimo, occaſum
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              versùs; ac proinde illam versùs occaſum ire apparenter, à puncto maximæ
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              digreſſionis ortivæ, ad punctum maximæ occiduæ; & ab hac, ad illam, ver-</s>
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          </chap>
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