Clavius, Christoph, In Sphaeram Ioannis de Sacro Bosco commentarius

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        <div xml:id="echoid-div892" type="section" level="1" n="358">
          <p>
            <s xml:id="echoid-s16675" xml:space="preserve">
              <pb o="444" file="480" n="481" rhead="Comment. in IIII. Cap. Sphæræ"/>
            centrici, quàm in oppoſito Augis. </s>
            <s xml:id="echoid-s16676" xml:space="preserve">Immerſus igitur erit intra craſſitiem Eccen
              <lb/>
            trici Epicyclus, ad cuius motũ planeta reuoluatur. </s>
            <s xml:id="echoid-s16677" xml:space="preserve">Ita enim nullo labore præ-
              <lb/>
            dictæ diuerſitatis cauſam reddemus. </s>
            <s xml:id="echoid-s16678" xml:space="preserve">Sit enim Zodiacus, cui cẽtrum idem cum
              <lb/>
            centro mundi ſit A; </s>
            <s xml:id="echoid-s16679" xml:space="preserve">Eccentricus uero deferens planetam ſit BCDE, cuius cen-
              <lb/>
            trum F, à mundi centro diuerſum; </s>
            <s xml:id="echoid-s16680" xml:space="preserve">Aux Eccentrici ſit B, & </s>
            <s xml:id="echoid-s16681" xml:space="preserve">oppoſitum Augis D.
              <lb/>
            </s>
            <s xml:id="echoid-s16682" xml:space="preserve">
              <figure xlink:label="fig-480-01" xlink:href="fig-480-01a" number="100">
                <image file="480-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/480-01"/>
              </figure>
            Quod ſi Luna v.</s>
            <s xml:id="echoid-s16683" xml:space="preserve">g. </s>
            <s xml:id="echoid-s16684" xml:space="preserve">ſolum in hoc Eccen-
              <lb/>
            trico moueretur, proculdubio in Au-
              <lb/>
            ge B, remotiſſima ſemper à nobis cer-
              <lb/>
            neretur, & </s>
            <s xml:id="echoid-s16685" xml:space="preserve">minima: </s>
            <s xml:id="echoid-s16686" xml:space="preserve">In oppoſito ue-
              <lb/>
            ro Augis D, propinquiſſima nobis, & </s>
            <s xml:id="echoid-s16687" xml:space="preserve">
              <lb/>
            maxima perpetuo appareret. </s>
            <s xml:id="echoid-s16688" xml:space="preserve">Cuius
              <lb/>
            contrarium accidere deprehenſum eſt
              <lb/>
            ab Aſtronomis. </s>
            <s xml:id="echoid-s16689" xml:space="preserve">At poſito Epicyclo
              <lb/>
            G H I, in quo planeta affigatur in
              <lb/>
            pancto G, uel I, liquido conſtat, Lu-
              <lb/>
            nam, (quod de alijs etiam planetis in
              <lb/>
            telligas.) </s>
            <s xml:id="echoid-s16690" xml:space="preserve">quamuis in Auge Eccen-
              <lb/>
            trici, vel oppoſito Augis extiterit, ta-
              <lb/>
            men quia tunc reperitur v.</s>
            <s xml:id="echoid-s16691" xml:space="preserve">g. </s>
            <s xml:id="echoid-s16692" xml:space="preserve">in Epicy-
              <lb/>
            clo ad punctum G, remotiorem à no-
              <lb/>
            bis apparere, quàm cum in Epicyclo
              <lb/>
            ad punctum I, extiterit. </s>
            <s xml:id="echoid-s16693" xml:space="preserve">Sed dicet for-
              <lb/>
            taſſe aliquis, fruſtra conceſſos eſſe Ec-
              <lb/>
            centricos, ſi per Epicyclum tueri poſſumus, planetas modoà terra eſſe remo-
              <lb/>
            tiores, modo minus diſtantes. </s>
            <s xml:id="echoid-s16694" xml:space="preserve">Cui reſpondendum eſt, quemadmodum per ſo-
              <lb/>
            lum Eccentricum hęc apparentia defendi non poteſt, ut diximus, ita quoque
              <lb/>
            eandem per ſolum Epicyclum defendi non poſſe. </s>
            <s xml:id="echoid-s16695" xml:space="preserve">Compertum namque eſt
              <lb/>
            à Mathematicis, Lunam v.</s>
            <s xml:id="echoid-s16696" xml:space="preserve">g. </s>
            <s xml:id="echoid-s16697" xml:space="preserve">exiſtentem in puncto Epicycli G, à terra remotiſ-
              <lb/>
            ſimo, non ſemper eandem à terra habuiſſe diſtantiam, neque eiuſdem ſemper
              <lb/>
            apparuiſſe magnitudinis. </s>
            <s xml:id="echoid-s16698" xml:space="preserve">Quod idem accidere cognouerunt, dum Luna in
              <lb/>
            puncto Epicycli I, terræ proximo exiſtebat. </s>
            <s xml:id="echoid-s16699" xml:space="preserve">Idemque in alijs planetis obſer-
              <lb/>
            uarunt. </s>
            <s xml:id="echoid-s16700" xml:space="preserve">Neceſſe igitur eſt, Epicyclum deferri in orbe Eccentrico, non autem
              <lb/>
            in concentrico, ut tanta diuerſitas locum inueniat. </s>
            <s xml:id="echoid-s16701" xml:space="preserve">Quare non fruſtra in pla-
              <lb/>
            netis, præter Epicyclum, Eccentricus conſtituitur, cum vterque orbis neceſſa-
              <lb/>
            rius ſit, ut præd@ctam apparentiam tueamur. </s>
            <s xml:id="echoid-s16702" xml:space="preserve">Vidi ego certe paucis annis ela-
              <lb/>
            pſis Martem tanta magnitudine, ut duplo tunc maior cœlo ſereniſſimo appa-
              <lb/>
            reret, quàm alio tempore, & </s>
            <s xml:id="echoid-s16703" xml:space="preserve">multi mirarentur exiſtimantes, nouum in cœlo ſy
              <lb/>
            dus effulſiſſe. </s>
            <s xml:id="echoid-s16704" xml:space="preserve">Quod idcirco dixerim, ut ſtudioſus lector videat, tam illuſtrem
              <lb/>
            eſſe hanc apparentiam de magnitudine planetarum, quæ ſine Eccentricis & </s>
            <s xml:id="echoid-s16705" xml:space="preserve">
              <lb/>
            Epicyclis defendi non poteſt, ut ſponte ſeſe oculis noſtris interdum obijciat ſi-
              <lb/>
            ne miniſterio inſtrumentorum.</s>
            <s xml:id="echoid-s16706" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s16707" xml:space="preserve">II. </s>
            <s xml:id="echoid-s16708" xml:space="preserve">
              <emph style="sc">Omnes</emph>
            planetæ, præter Solem, exiſtentes in Auge Eccentrici, quã-
              <lb/>
              <note position="left" xlink:label="note-480-01" xlink:href="note-480-01a" xml:space="preserve">II.
                <lb/>
              Apparentia
                <lb/>
              probant da
                <lb/>
              @i Epicyclos</note>
            uis ex ſe ibi tardius moueantur reſpectu centri terrę, ut ſupra de Sole eſt di-
              <lb/>
            ctum, tamen aliam adhuc ibi deprehenſi ſunt habere irregularitatem. </s>
            <s xml:id="echoid-s16709" xml:space="preserve">Nam Lu-
              <lb/>
            na v.</s>
            <s xml:id="echoid-s16710" xml:space="preserve">g. </s>
            <s xml:id="echoid-s16711" xml:space="preserve">aliquando uelocius in Auge, aliquando tardius uiſa eſt moueri. </s>
            <s xml:id="echoid-s16712" xml:space="preserve">Idem-
              <lb/>
            que in Augis oppoſito compertum eſt: </s>
            <s xml:id="echoid-s16713" xml:space="preserve">ita ut Luna aliquando in Zodiaco per-
              <lb/>
            currat uno die ferme grad. </s>
            <s xml:id="echoid-s16714" xml:space="preserve">15. </s>
            <s xml:id="echoid-s16715" xml:space="preserve">alio uero die tantum grad. </s>
            <s xml:id="echoid-s16716" xml:space="preserve">11. </s>
            <s xml:id="echoid-s16717" xml:space="preserve">Quod quidem
              <lb/>
            ficut per ſolum Eccentricum defendi nequit, (alias namque eadem </s>
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