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

Table of handwritten notes

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              <pb o="556" file="0288" n="303" rhead="CHRIST. HUGENII"/>
            notavit anno 1610, in qua triceps Saturnus ſpectatur, mi-
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              <note position="left" xlink:label="note-0288-01" xlink:href="note-0288-01a" xml:space="preserve">TAB. LII.
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              fig. 1.</note>
            noribus duobus orbiculis majori utrinque adjacentibus.
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            </s>
            <s xml:id="echoid-s6085" xml:space="preserve">Hanc alii quoque permulti viderunt, aut certè ſe vidiſſe cre-
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            diderunt. </s>
            <s xml:id="echoid-s6086" xml:space="preserve">Nam ſi grandiores tubos adhibuiſſent atque o-
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            ptimis vitris inſtructos, haud dubiè pro triplici hac globulo-
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            rum facie eadem ſeſe illis obtuliſſet quam nobis diximus an-
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            no 1655, ac rurſus anno inſequenti, die 13 Oct. </s>
            <s xml:id="echoid-s6087" xml:space="preserve">viſam. </s>
            <s xml:id="echoid-s6088" xml:space="preserve">Hoc
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            enim inde colligimus quod dum illis bini ad latera globuli
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            apparent, nobis porrecta in longitudinem brachia tubi no-
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            ſtri referunt; </s>
            <s xml:id="echoid-s6089" xml:space="preserve">uti contigit eo ipſo anno 1655, menſe Aprili
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            ac Majo, quo tempore triſphærica illa figura Ricciolo He-
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            velioque obſervata fuit. </s>
            <s xml:id="echoid-s6090" xml:space="preserve">Etenim quo certius conſtet ob per-
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            ſpicillorum parvitatem talem hanc cerni, experimur nobis
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            quoque, quoties breviori perſpicillo, quinûm puta aut ſe-
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            nûm pedum, Saturnum aſpicimus, binos globulos dictorum
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            loco brachiorum apparere; </s>
            <s xml:id="echoid-s6091" xml:space="preserve">etiam illâ anni 1658 jam exiſten-
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            te phaſi.</s>
            <s xml:id="echoid-s6092" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6093" xml:space="preserve">Quænam autem fallacis imaginis cauſa ſit facile perſpici-
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            tur. </s>
            <s xml:id="echoid-s6094" xml:space="preserve">Quippe enim quum circa extremas cuſpides amplio-
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            rem lucem brachia hæc ſive alæ emittant, quam qua parte
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            medio Saturni diſco adhærent, ubi ſemper umbræ aliquid
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            intercedit, non modo cum manifeſto jam bifida evaſerunt,
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            velut anno 1658, ſed antea quoque ut anno 1657; </s>
            <s xml:id="echoid-s6095" xml:space="preserve">non mi-
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            rum eſt lucem illam intenſiorem, debiliori interjecta, peni-
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            tus à medio orbe ſeparatam videri. </s>
            <s xml:id="echoid-s6096" xml:space="preserve">Neque item rotundam
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            ex oblonga fieri mirandum eſt, cum idem accidat omni fi-
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            guræ eminus, nec ſatis diſtinctè ob exilitatem, perceptæ,
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            atque eo magis quo fuerit lucidior. </s>
            <s xml:id="echoid-s6097" xml:space="preserve">Itaque plane conſtat te-
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            leſcopiorum culpa phaſin hanc vitiatam eſſe, licet obſerva-
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            tores bona fide eam tradiderint.</s>
            <s xml:id="echoid-s6098" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s6099" xml:space="preserve">Quæ ſequitur hanc nihilo melius ſe habet, à Scheinero
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              <note position="left" xlink:label="note-0288-02" xlink:href="note-0288-02a" xml:space="preserve">TAB. LII.
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              fig. 2.</note>
            obſervata anno 1614. </s>
            <s xml:id="echoid-s6100" xml:space="preserve">Atque equidem dubito, perfectiori-
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            buſne an deterioribus perſpicillis, quam qui præcedentem
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            dederunt, hanc deprehenderit. </s>
            <s xml:id="echoid-s6101" xml:space="preserve">Quoniam hactenus quidem
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            ad veram magis accedit, quod affixas Saturno auriculas ex-
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            hibet; </s>
            <s xml:id="echoid-s6102" xml:space="preserve">at contra in eo aberrat, quod plus juſto earum </s>
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