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

Table of Notes

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              <pb o="573" file="0307" n="323" rhead="SYSTEMA SATURNIUM."/>
            ris ipſius Saturni ante vel pone comitem objectu. </s>
            <s xml:id="echoid-s6437" xml:space="preserve">Ita nam-
              <lb/>
            que obſervationes anni 1655 & </s>
            <s xml:id="echoid-s6438" xml:space="preserve">1657, quo tempore exilia & </s>
            <s xml:id="echoid-s6439" xml:space="preserve">
              <lb/>
            quam maximè compreſſa brachia erant, oſtendunt comitem
              <lb/>
            etiam in ea recta tunc perpetuo apparuiſſe quæ per utrum-
              <lb/>
            que illorum extendebatur.</s>
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          </p>
          <p>
            <s xml:id="echoid-s6441" xml:space="preserve">Et hac quidem in re diſſidet Saturniæ Lunæ curſus ab eo
              <lb/>
            qui in noſtrate Luna animadvertitur; </s>
            <s xml:id="echoid-s6442" xml:space="preserve">ſiquidem hæc non æ-
              <lb/>
            quatoris noſtri ſed magis eclipticæ plano obnoxia eſt, à quo
              <lb/>
            quinque tantummodo partibus exorbitat.</s>
            <s xml:id="echoid-s6443" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6444" xml:space="preserve">Verum ad Saturni phaſes revertamur: </s>
            <s xml:id="echoid-s6445" xml:space="preserve">quo poſito ad H
              <lb/>
              <note position="right" xlink:label="note-0307-01" xlink:href="note-0307-01a" xml:space="preserve">Quomod@
                <lb/>
              anſarum @@-
                <lb/>
              titudo ſenſim
                <lb/>
              contrah@uc.
                <lb/>
              TAB. L.
                <lb/>
              fig. 2.</note>
            vel I, vel ex adverſo ad O vel P, paulo anguſtiorem jam
              <lb/>
            annuli ellipſin, eadem tamen qua prius longitudine nobis
              <lb/>
            aſpici oportet, quum ſupra planum annuli minus altè hoc
              <lb/>
            ſitu viſus noſter efferatur. </s>
            <s xml:id="echoid-s6446" xml:space="preserve">Unde illa phaſis exorietur quæ
              <lb/>
            in tabellæ LII. </s>
            <s xml:id="echoid-s6447" xml:space="preserve">ſerie octava poſita eſt; </s>
            <s xml:id="echoid-s6448" xml:space="preserve">vel, minus accuratè
              <lb/>
            perſpicere valentibus, ea quæ ſexta eſt efficietur.</s>
            <s xml:id="echoid-s6449" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6450" xml:space="preserve">Rurſus autem eum ad K aut L Saturnus pervenit, vel ad
              <lb/>
            loca hiſce oppoſita N & </s>
            <s xml:id="echoid-s6451" xml:space="preserve">M, magis adhuc contrahi apparet
              <lb/>
            minorem ellipſis diametrum, quippe magis ex obliquo in-
              <lb/>
            ſpectam. </s>
            <s xml:id="echoid-s6452" xml:space="preserve">Ut jam ea Saturni facies proditura ſit quam nos
              <lb/>
            anno 1658 obſervavimus (T. </s>
            <s xml:id="echoid-s6453" xml:space="preserve">XLIX. </s>
            <s xml:id="echoid-s6454" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s6455" xml:space="preserve">7.)</s>
            <s xml:id="echoid-s6456" xml:space="preserve">; </s>
            <s xml:id="echoid-s6457" xml:space="preserve">quæ minus bo-
              <lb/>
            nis teleſcopiis excepta degeneravit in illam quæ quinta in ta-
              <lb/>
            bella LII. </s>
            <s xml:id="echoid-s6458" xml:space="preserve">recenſetur; </s>
            <s xml:id="echoid-s6459" xml:space="preserve">pejoribus etiam in triſphæricam.</s>
            <s xml:id="echoid-s6460" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6461" xml:space="preserve">Deinde cum penè quadrante circuli à latiſſimæ phaſeos
              <lb/>
              <note position="right" xlink:label="note-0307-02" xlink:href="note-0307-02a" xml:space="preserve">Quomodo
                <lb/>
              patulæ vide-
                <lb/>
              ri anſæ de-
                <lb/>
              ſinant.</note>
            loco Saturnus remotus invenitur, velut in Q & </s>
            <s xml:id="echoid-s6462" xml:space="preserve">R, vel S
              <lb/>
            & </s>
            <s xml:id="echoid-s6463" xml:space="preserve">T; </s>
            <s xml:id="echoid-s6464" xml:space="preserve">uſque eo ellipſis annuli conſtringitur, ut ſi qua adhuc
              <lb/>
            rima ſuperſit viſui pervia, ea tamen propter exilitatem & </s>
            <s xml:id="echoid-s6465" xml:space="preserve">re-
              <lb/>
            liqui corporis ſplendorem conſpici nequeat; </s>
            <s xml:id="echoid-s6466" xml:space="preserve">ac proinde Sa-
              <lb/>
            turni forma ejuſmodi appareat qualem anno 1655 & </s>
            <s xml:id="echoid-s6467" xml:space="preserve">1657
              <lb/>
            nos ſpectaſſe ſupra meminimus (T. </s>
            <s xml:id="echoid-s6468" xml:space="preserve">XLIX. </s>
            <s xml:id="echoid-s6469" xml:space="preserve">fig. </s>
            <s xml:id="echoid-s6470" xml:space="preserve">6. </s>
            <s xml:id="echoid-s6471" xml:space="preserve">T.</s>
            <s xml:id="echoid-s6472" xml:space="preserve">LI. </s>
            <s xml:id="echoid-s6473" xml:space="preserve">fig 5),
              <lb/>
            quæ quomodo aliis omnibus hactenus teleſcopiorum culpâ
              <lb/>
            triſphærica exiſtimata ſit, antea quoque oſtenſum eſt.</s>
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            <s xml:id="echoid-s6475" xml:space="preserve">Sola dehinc rotunda phaſis explicanda reſtat; </s>
            <s xml:id="echoid-s6476" xml:space="preserve">ad quam
              <lb/>
            priuſquam tranſeam, de inclinatione magnæ Saturni diame-
              <lb/>
            tri, ſive anſarum lineæ, ut ſupra eam vocavi, pauca adno-
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            tanda ſunt.</s>
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