Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica

Page concordance

< >
Scan Original
361 608
362 609
363 610
364 611
365 612
366 613
367 614
368 615
369 616
370 617
371 618
372
373
374 621
375 622
376 623
377 624
378 625
379 626
380
381
382
383 627
384 628
385 629
386 630
387 631
388 632
389 633
390 634
< >
page |< < (611) of 568 > >|
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div xml:id="echoid-div361" type="section" level="1" n="145">
          <p>
            <s xml:id="echoid-s7435" xml:space="preserve">
              <pb o="611" file="0347" n="364" rhead="IN SYSTEMA SATURNIUM."/>
            tia ad utrumque terminum; </s>
            <s xml:id="echoid-s7436" xml:space="preserve">hunc autem primum motum re-
              <lb/>
            ctum vocat. </s>
            <s xml:id="echoid-s7437" xml:space="preserve">VI. </s>
            <s xml:id="echoid-s7438" xml:space="preserve">Supponit alium motum rectum, ſecundum
              <lb/>
            ſcilicet, ac declinationis ab Auſtro ad Boream, & </s>
            <s xml:id="echoid-s7439" xml:space="preserve">viciſſim;
              <lb/>
            </s>
            <s xml:id="echoid-s7440" xml:space="preserve">fines porro diverſi ſunt in diverſis planetis, pro diverſa de-
              <lb/>
            clinatione maxima cujuſlibet planetæ; </s>
            <s xml:id="echoid-s7441" xml:space="preserve">eſt etiam hic motus
              <lb/>
            eodem modo acceleratus, & </s>
            <s xml:id="echoid-s7442" xml:space="preserve">retardatus, quo prior; </s>
            <s xml:id="echoid-s7443" xml:space="preserve">& </s>
            <s xml:id="echoid-s7444" xml:space="preserve">me-
              <lb/>
            diocris diſtantia eſt in æquatore: </s>
            <s xml:id="echoid-s7445" xml:space="preserve">ex his tribus motibus, Sa-
              <lb/>
            turni motus componitur; </s>
            <s xml:id="echoid-s7446" xml:space="preserve">vel potiùs eſt motus quidam ſim-
              <lb/>
            plex circulari affinis, prædictis duabus determinationibus in-
              <lb/>
            ſtructus; </s>
            <s xml:id="echoid-s7447" xml:space="preserve">vel, ut ajunt Scholaſtici, modificatus; </s>
            <s xml:id="echoid-s7448" xml:space="preserve">primus mo-
              <lb/>
            tus brevior eſt; </s>
            <s xml:id="echoid-s7449" xml:space="preserve">ſecundus diuturnior; </s>
            <s xml:id="echoid-s7450" xml:space="preserve">cujus ſanè diſcriminis
              <lb/>
            cauſam affert. </s>
            <s xml:id="echoid-s7451" xml:space="preserve">Sed ut rude aliquod ſchema exhibeam, omiſ-
              <lb/>
            ſo ſecundo motu recto, ſit centrum mundi B. </s>
            <s xml:id="echoid-s7452" xml:space="preserve">hic terram col-
              <lb/>
              <note position="right" xlink:label="note-0347-01" xlink:href="note-0347-01a" xml:space="preserve">TAB. LI.
                <lb/>
              fig. 1.</note>
            locat immobilem. </s>
            <s xml:id="echoid-s7453" xml:space="preserve">Sit G B diſtantia Saturni apogæi; </s>
            <s xml:id="echoid-s7454" xml:space="preserve">B O di-
              <lb/>
            ſtantia perigæi; </s>
            <s xml:id="echoid-s7455" xml:space="preserve">B P diſtantia mediocris, Saturnus circulum,
              <lb/>
            vel orbem radio G B tardius percurrit, quàm Stella vel pun-
              <lb/>
            ctum primi mobilis, cui reſpondet; </s>
            <s xml:id="echoid-s7456" xml:space="preserve">citius verò percurrit or-
              <lb/>
            bem radio B O, & </s>
            <s xml:id="echoid-s7457" xml:space="preserve">æquè citò radio B A minore mediocri
              <lb/>
            diſtantia B P. </s>
            <s xml:id="echoid-s7458" xml:space="preserve">His præmiſſis, ſit Saturnus in apogæo G, re-
              <lb/>
            ſpondens puncto C primi mobilis, vel initio arietis v. </s>
            <s xml:id="echoid-s7459" xml:space="preserve">g. </s>
            <s xml:id="echoid-s7460" xml:space="preserve">& </s>
            <s xml:id="echoid-s7461" xml:space="preserve">
              <lb/>
            ſupponatur punctum C per S deſcribere ſuum circulum, mo-
              <lb/>
            tu diurno; </s>
            <s xml:id="echoid-s7462" xml:space="preserve">item Saturnus in G ſuum, per R, ſcilicet versùs
              <lb/>
            occaſum; </s>
            <s xml:id="echoid-s7463" xml:space="preserve">punctum C citiùs abſolvit ſuum gyrum, quàm Sa-
              <lb/>
            turnus; </s>
            <s xml:id="echoid-s7464" xml:space="preserve">igitur Saturnum à tergo relinquit, versùs ortum, ſci-
              <lb/>
            licet in aliquo puncto curvæ G H; </s>
            <s xml:id="echoid-s7465" xml:space="preserve">nempe primo motu re-
              <lb/>
            cto, à circulo apogæi L R ſenſim deſcendit ad circulum pe-
              <lb/>
            rigæi Z X, donec tandem multis orbibus actis, perveniat in
              <lb/>
            H, & </s>
            <s xml:id="echoid-s7466" xml:space="preserve">reſpondeat puncto E primi mobilis, v. </s>
            <s xml:id="echoid-s7467" xml:space="preserve">g. </s>
            <s xml:id="echoid-s7468" xml:space="preserve">20. </s>
            <s xml:id="echoid-s7469" xml:space="preserve">gradui
              <lb/>
            Arietis: </s>
            <s xml:id="echoid-s7470" xml:space="preserve">toto illo tempore, moveri dicitur in conſequentia;
              <lb/>
            </s>
            <s xml:id="echoid-s7471" xml:space="preserve">id eſt, juxta ſeriem ſignorum, initio quidem, motu accele-
              <lb/>
            rato; </s>
            <s xml:id="echoid-s7472" xml:space="preserve">& </s>
            <s xml:id="echoid-s7473" xml:space="preserve">ſub finem, retardato; </s>
            <s xml:id="echoid-s7474" xml:space="preserve">in H ſtare videtur: </s>
            <s xml:id="echoid-s7475" xml:space="preserve">hîc enim
              <lb/>
            æquè citò ac punctum E ſuum gyrum agit: </s>
            <s xml:id="echoid-s7476" xml:space="preserve">Quia verô adhuc
              <lb/>
            deſcendit versùs perigæum, decurrit deinceps ſuos orbes ci-
              <lb/>
            tiùs, quàm puncta primi mobilis, quibus reſpondet; </s>
            <s xml:id="echoid-s7477" xml:space="preserve">ac pro-
              <lb/>
            inde illa relinquit à tergo, versùs ortum ab H quidem, ad
              <lb/>
            perigæum I: </s>
            <s xml:id="echoid-s7478" xml:space="preserve">ab I verò, ad K; </s>
            <s xml:id="echoid-s7479" xml:space="preserve">hinc videtur regredi ab E </s>
          </p>
        </div>
      </text>
    </echo>
Impressum