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

Table of figures

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[51] Fig. 6.A C D M B
[52] Fig. 5.A E N F B L D M C G H I K O
[Figure 53]
[Figure 54]
[55] Pag. 398.TAB. XLI.Fig. 1.S T B R K H Q C N O M A E L D
[56] Fig. 2.D E F B G H C A
[57] Fig. 3.F D E G A B C
[58] Fig. 4.G N B H D K A E C F
[59] Fig. 8K A F c C E B h H G D d
[60] Fig. 6.C E D A F B R Q
[61] Fig. 5.G L B H D O A E C K
[62] Fig. 7.K F A C D B E H G
[63] Pag. 404.TAB. XLII.Fig. 1.K F M A C D B L E N G
[64] Fig. 3.G R D B H F E N A X C M P Q K
[65] Fig. 2.K A F c S C L E B T G D R d
[66] Fig. 4.K e G P E m B D f R F S H M C A N L Q n
[67] Fig. 5.B C R E G A F M Q D O
[68] Fig. 6.B C H G E A M Q P K D
[69] Fig. 7.B C E G A M P Q K H D
[Figure 70]
[71] Pag. 450.TAB.XLIII.Fig. 4.B A F R P C D E G H I K S L M N O
[72] Fig. 1.F G I K D L E S T O C N H M V R B Q P A
[73] Fig. 2.F G I K D L E S T O C N V R B Q P A
[74] Fig. 5.A C B D E
[75] Fig. 3.A F G I K D L S T E O C N H M V R B Q P
[Figure 76]
[Figure 77]
[Figure 78]
[Figure 79]
[Figure 80]
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          <p>
            <s xml:id="echoid-s6506" xml:space="preserve">
              <pb o="575" file="0309" n="325" rhead="SYSTEMA SATURNIUM."/>
            guus, vix puto obſervabilis erit: </s>
            <s xml:id="echoid-s6507" xml:space="preserve">aliis autem locis multo mi-
              <lb/>
            nus. </s>
            <s xml:id="echoid-s6508" xml:space="preserve">Nam iis quidem quæ quadrante Zodiaci inde abſunt,
              <lb/>
            nempe cum gr. </s>
            <s xml:id="echoid-s6509" xml:space="preserve">25. </s>
            <s xml:id="echoid-s6510" xml:space="preserve">15′. </s>
            <s xml:id="echoid-s6511" xml:space="preserve">♍ aut ♓ Saturnus obtinebit, prorſus
              <lb/>
            parallela æquatori eadem anſarum linea conſpicictur. </s>
            <s xml:id="echoid-s6512" xml:space="preserve">Eclipti-
              <lb/>
            cæ vero parallela fiet Saturno gr. </s>
            <s xml:id="echoid-s6513" xml:space="preserve">20{1/2} ♊ aut ♐ tenente: </s>
            <s xml:id="echoid-s6514" xml:space="preserve">quip-
              <lb/>
            pe quam in locis per quadrantem circuli inde diſtantibus,
              <lb/>
            nempe in gr. </s>
            <s xml:id="echoid-s6515" xml:space="preserve">20{1/2} ♍ & </s>
            <s xml:id="echoid-s6516" xml:space="preserve">♓, maximo angulo interſecat. </s>
            <s xml:id="echoid-s6517" xml:space="preserve">Hunc
              <lb/>
            autem maximum angulum quo linea anſarum eclipticam in-
              <lb/>
            terſecat eſſe circiter gr. </s>
            <s xml:id="echoid-s6518" xml:space="preserve">23{1/2} obſervationibus anni 1655, 1656
              <lb/>
            & </s>
            <s xml:id="echoid-s6519" xml:space="preserve">1657 apparuit, talemque ad iſta ſupputanda adſumſimus.
              <lb/>
            </s>
            <s xml:id="echoid-s6520" xml:space="preserve">Fortaſſe autem, longo ſæculorum lapſu, ſenſim omnia hæc
              <lb/>
            loca mutari continget, ſimili quodam motu Saturni globum
              <lb/>
            inclinante atque in Tellure noſtra eſt is qui præceſſiones æ-
              <lb/>
            quinoctiorum efficit: </s>
            <s xml:id="echoid-s6521" xml:space="preserve">atque ita phaſium quoque omnium lo-
              <lb/>
            ca transferri neceſſe erit. </s>
            <s xml:id="echoid-s6522" xml:space="preserve">Hoc verò non tam facile in cæ-
              <lb/>
            teris phaſibus quam in rotunda pateſcet, ad cujus conſide-
              <lb/>
            rationem deinceps veniendum.</s>
            <s xml:id="echoid-s6523" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6524" xml:space="preserve">Schema itaque repetenti manifeſtum eſt Saturnum in-
              <lb/>
              <note position="right" xlink:label="note-0309-01" xlink:href="note-0309-01a" xml:space="preserve">Rotundæ
                <lb/>
              phaſeos cau-
                <lb/>
              ſæ.</note>
            tegro orbitæ ſuæ circuitu non poſſe non ad eum locum bis
              <lb/>
            pervenire, (eſto in B & </s>
            <s xml:id="echoid-s6525" xml:space="preserve">D) ubi planum annuli recta ad nos
              <lb/>
            dirigatur, productumque in oculos noſtros incurrat. </s>
            <s xml:id="echoid-s6526" xml:space="preserve">Quod
              <lb/>
            quidem in locis è diametro oppoſitis contingeret, inque iiſ-
              <lb/>
            dem perpetuò, ſi ex Sole Saturni motum proſpiceremus; </s>
            <s xml:id="echoid-s6527" xml:space="preserve">at
              <lb/>
            nunc propter motum Terræ in ſua orbita annuum, nonnul-
              <lb/>
            la oritur inæqualitas. </s>
            <s xml:id="echoid-s6528" xml:space="preserve">Annulo igitur ſecundum latus inſpe-
              <lb/>
            cto, nec niſi rectam lineam referente, quum neutra plana-
              <lb/>
            rum ejus ſuperficierum appareat, ad nihilum rediguntur bra-
              <lb/>
            chia ac prorſus intereunt, ſolo rotundo Saturni corpore
              <lb/>
            quod intueamur reliquo. </s>
            <s xml:id="echoid-s6529" xml:space="preserve">Cujus phænomeni primum teſtem
              <lb/>
            Galilæum ſupra commemoravimus, qui anno 1612 ſimpli-
              <lb/>
            cem hanc Saturni formam obſervaverit. </s>
            <s xml:id="echoid-s6530" xml:space="preserve">Inde verò poſt an-
              <lb/>
            nos 30 Gaſſendum alioſque complures; </s>
            <s xml:id="echoid-s6531" xml:space="preserve">ac nos etiam deni-
              <lb/>
            que anno 1656. </s>
            <s xml:id="echoid-s6532" xml:space="preserve">Verùm enim ſi hôc tantum annuli poſitu
              <lb/>
            anſæ evaneſcerent, nequaquam tanto tempore perſtare ro-
              <lb/>
            tunda phaſis poſſet atque obſervationes teſtantur, toto enim
              <lb/>
            ſemeſtri rotundus Saturnus ſpectatus fuit. </s>
            <s xml:id="echoid-s6533" xml:space="preserve">Quamobrem </s>
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