Clavius, Christoph, Gnomonices libri octo, in quibus non solum horologiorum solariu[m], sed aliarum quo[quam] rerum, quae ex gnomonis umbra cognosci possunt, descriptiones geometricè demonstrantur

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            <s xml:id="echoid-s14130" xml:space="preserve">
              <pb o="206" file="0226" n="226" rhead="GNOMONICES"/>
            num horologij Verticali æquidiſtans rectum eſt ad Meridiani planum; </s>
            <s xml:id="echoid-s14131" xml:space="preserve">erit & </s>
            <s xml:id="echoid-s14132" xml:space="preserve">communis ſectio
              <lb/>
            Aequatoris, ac plani horologii ad idem planum Meridiani, ideoq́; </s>
            <s xml:id="echoid-s14133" xml:space="preserve">& </s>
            <s xml:id="echoid-s14134" xml:space="preserve">per defin. </s>
            <s xml:id="echoid-s14135" xml:space="preserve">3. </s>
            <s xml:id="echoid-s14136" xml:space="preserve">lib. </s>
            <s xml:id="echoid-s14137" xml:space="preserve">11. </s>
            <s xml:id="echoid-s14138" xml:space="preserve">Euclidis,
              <lb/>
              <note position="left" xlink:label="note-0226-01" xlink:href="note-0226-01a" xml:space="preserve">19. vndec.</note>
            ad lineam meridianam H I, in plano Meridiani exiſtentem, perpendicularis in puncto I, in quo
              <lb/>
            Aequator lineæ meridianæ in horologio occcurrit, vt dictum eſt. </s>
            <s xml:id="echoid-s14139" xml:space="preserve">Recta igitur F K, quæ in horo-
              <lb/>
              <figure xlink:label="fig-0226-01" xlink:href="fig-0226-01a" number="157">
                <image file="0226-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0226-01"/>
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              <note position="left" xlink:label="note-0226-02" xlink:href="note-0226-02a" xml:space="preserve">10</note>
              <note position="left" xlink:label="note-0226-03" xlink:href="note-0226-03a" xml:space="preserve">20</note>
              <note position="left" xlink:label="note-0226-04" xlink:href="note-0226-04a" xml:space="preserve">30</note>
              <note position="left" xlink:label="note-0226-05" xlink:href="note-0226-05a" xml:space="preserve">40</note>
            logio per I, ad meridianam lineam H I, perpendicularis eſt ducta, communis ſectio eſt Aequato-
              <lb/>
            ris, & </s>
            <s xml:id="echoid-s14140" xml:space="preserve">plani horologii, nempe linea æquinoctialis: </s>
            <s xml:id="echoid-s14141" xml:space="preserve">Circa quam ſi moueri intelligatur planum cir-
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            culi ex centro E, deſcripti, donec cum mundi centro D, in triangulo D H I, (quod rectum eſſe di-
              <lb/>
              <note position="left" xlink:label="note-0226-06" xlink:href="note-0226-06a" xml:space="preserve">50</note>
            ximus ad planum horologii, & </s>
            <s xml:id="echoid-s14142" xml:space="preserve">in plano Meridiani exiſtere, vnà cum tota portione Analemmatis,
              <lb/>
            quamuis ſolum triangulum in horologio deſcriptum ſit) coniungatur E, centrum circuli, propte-
              <lb/>
            rea quòd rectę D I, I E, æquales ſunt, ex conſtructione, & </s>
            <s xml:id="echoid-s14143" xml:space="preserve">in illo motu circuli ex E, deſcripti recta
              <lb/>
            I E, ſem per maneat in plano Meridiani, in quo exiſtit D I, erit ipſe circulus circa D, centrum mun-
              <lb/>
            di, ſeu Aequatoris deſcriptus, & </s>
            <s xml:id="echoid-s14144" xml:space="preserve">in plano eiuſdem Aequatoris exiſtens, cùm Aequatoris planum
              <lb/>
            per rectas D I, I K, ducatur, quemadmodum & </s>
            <s xml:id="echoid-s14145" xml:space="preserve">circulus dictus in tali poſitione per eaſdem eſt du-
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            ctus; </s>
            <s xml:id="echoid-s14146" xml:space="preserve">ita vt circulus hic, & </s>
            <s xml:id="echoid-s14147" xml:space="preserve">Aequator in eodem exiſtant plano, idemq́; </s>
            <s xml:id="echoid-s14148" xml:space="preserve">habeant centrum, nimirum
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            D, centrum mundi. </s>
            <s xml:id="echoid-s14149" xml:space="preserve">Intelligatur quoque I E, protracta in vtramque partem in eadem poſitione,
              <lb/>
            quippe quę ſimul cum circuli plano moueatur tanquam communis ſectio Meridiani, & </s>
            <s xml:id="echoid-s14150" xml:space="preserve">Aequato
              <lb/>
            ris, cum tam Meridianus, quàm Aequator in huiuſmodi poſitione per rectam D I, vel I E, trãſeat.
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            </s>
            <s xml:id="echoid-s14151" xml:space="preserve">Quocirca per ca, quæ propoſ. </s>
            <s xml:id="echoid-s14152" xml:space="preserve">1. </s>
            <s xml:id="echoid-s14153" xml:space="preserve">huius lib. </s>
            <s xml:id="echoid-s14154" xml:space="preserve">de horologio horizontali demonſtrata ſunt, erunt </s>
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