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

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            <s xml:id="echoid-s6878" xml:space="preserve">
              <pb o="589" file="0325" n="342" rhead="SYSTEMA SATURNIUM."/>
            lorum ſuperſtans. </s>
            <s xml:id="echoid-s6879" xml:space="preserve">Verum eo labore ſuperſedere rectius ar-
              <lb/>
            bitror, tum quod Aſtronomiæ gnaris ſingula hæc expende-
              <lb/>
            re, ſibique ob oculos ponere, non ſit difficilè futurum; </s>
            <s xml:id="echoid-s6880" xml:space="preserve">tum
              <lb/>
            quod in his ipſis multi ſint, (ut alios mittam) quibus otio-
              <lb/>
            ſa & </s>
            <s xml:id="echoid-s6881" xml:space="preserve">inanis ejuſmodi diſquiſitio videretur; </s>
            <s xml:id="echoid-s6882" xml:space="preserve">ac tanto quidem
              <lb/>
            magis, quanto abſurdius putant ut ammantia aliqua ratione
              <lb/>
            prædita Saturnum ac reliquos Planetarum incolere creda-
              <lb/>
            mus.</s>
            <s xml:id="echoid-s6883" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6884" xml:space="preserve">De magnitudine autem Saturni ejuſque à terris diſtantia
              <lb/>
              <note position="right" xlink:label="note-0325-01" xlink:href="note-0325-01a" xml:space="preserve">De Saturni
                <lb/>
              magnitudine
                <lb/>
              & à terris
                <lb/>
              diſtantia.</note>
            operæ pretium videtur ut ſententiam noſtram his ſubjicia-
              <lb/>
            mus, ſiquidem & </s>
            <s xml:id="echoid-s6885" xml:space="preserve">alio modo illas inquiſivimus quam quo
              <lb/>
            fieri ſolet, & </s>
            <s xml:id="echoid-s6886" xml:space="preserve">aliquanto aliter de utraque ſtatuimus. </s>
            <s xml:id="echoid-s6887" xml:space="preserve">Nem-
              <lb/>
            pe ſphærulam illam annulo cinctam quam ſub exiguis modo
              <lb/>
            lineamentis ſpectavimus, diametrum quindecies circiter ma-
              <lb/>
            jorem habere, quam noſtra hæc in qua degimus terra, pu-
              <lb/>
            tandum eſt; </s>
            <s xml:id="echoid-s6888" xml:space="preserve">abeſſe autem à nobis, cum poxima eſt, terræ
              <lb/>
            diametris 100344; </s>
            <s xml:id="echoid-s6889" xml:space="preserve">cum longiſſimè diſtat, 122000. </s>
            <s xml:id="echoid-s6890" xml:space="preserve">Quæ
              <lb/>
            quidem ſequenti ratiocinio nituntur.</s>
            <s xml:id="echoid-s6891" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6892" xml:space="preserve">Docuit nos novo ſuo ac divinitus invento ſyſtemate Co-
              <lb/>
            pernicus, quamnam inter ſe proportionem ſervent ſingulo-
              <lb/>
            rum à Sole Planetarum diſtantiæ, apparentes vero eorundem
              <lb/>
            diametri quanto aliæ aliis majores ſint teleſcopii ope innote-
              <lb/>
            ſcit. </s>
            <s xml:id="echoid-s6893" xml:space="preserve">Collatis ergo invicem rationibus utriſque, tum diſtan-
              <lb/>
            tiæ tum magnitudinis apparentis, vera inde planetarum ad
              <lb/>
            ſe mutuo, nec non ad Solem magnitudo cognoſcitur. </s>
            <s xml:id="echoid-s6894" xml:space="preserve">Et
              <lb/>
              <note position="right" xlink:label="note-0325-02" xlink:href="note-0325-02a" xml:space="preserve">Quanta ap-
                <lb/>
              pareat major
                <lb/>
              Saturni dia-
                <lb/>
              meter.</note>
            ad Saturnum quod attinet, primùm annuli ejus diameter.
              <lb/>
            </s>
            <s xml:id="echoid-s6895" xml:space="preserve">quum in minima à nobis diſtantia comprehendatur angulo
              <lb/>
            ſexaginta & </s>
            <s xml:id="echoid-s6896" xml:space="preserve">octo ſcrupulorum ſecundorum; </s>
            <s xml:id="echoid-s6897" xml:space="preserve">talem enim ad
              <lb/>
            ſummum reperimus; </s>
            <s xml:id="echoid-s6898" xml:space="preserve">cumque minima hæc Saturni diſtantia
              <lb/>
            ad mediocrem Solis diſtantiam ſit fere octupla; </s>
            <s xml:id="echoid-s6899" xml:space="preserve">ſequitur, ſi
              <lb/>
            tam propinquus nobis fieret Saturnus quam Sol in diſtantia
              <lb/>
            mediocri, apparituram tunc annuli diametrum octuplam ejus
              <lb/>
            quæ nunc apparet, hoc eſt 9′, 4″. </s>
            <s xml:id="echoid-s6900" xml:space="preserve">Solis autem diameter in
              <lb/>
            media diſtantia eſt 30, 30″. </s>
            <s xml:id="echoid-s6901" xml:space="preserve">Ergo revera ea erit proportio
              <lb/>
            diametri ann@@i Saturnii ad diametrum Solis quæ 9′, 4″, ad
              <lb/>
            30′, 30″, hoc eſt, fere quæ 11 ad 37. </s>
            <s xml:id="echoid-s6902" xml:space="preserve">Diameter vero </s>
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