Clavius, Christoph, In Sphaeram Ioannis de Sacro Bosco commentarius

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          <p>
            <s xml:id="echoid-s10806" xml:space="preserve">
              <pb o="257" file="293" n="294" rhead="Ioan. de Sacro Boſco."/>
            bet menſuratur circulo maximo per polos mundi, & </s>
            <s xml:id="echoid-s10807" xml:space="preserve">per centrum ſtellæ ince-
              <lb/>
            dente. </s>
            <s xml:id="echoid-s10808" xml:space="preserve">Qui quidem circulus appellari ſolet circulus declinationis. </s>
            <s xml:id="echoid-s10809" xml:space="preserve">Quotirca
              <lb/>
              <note position="right" xlink:label="note-293-01" xlink:href="note-293-01a" xml:space="preserve">Circulus de
                <lb/>
              clinationis</note>
            ita ab Aſtronomis definiri conſueuit declinatio ſtellæ cuiuſque, vel etiam pun
              <lb/>
            cti cuiuſuis eclipticæ. </s>
            <s xml:id="echoid-s10810" xml:space="preserve">Declinatio ſtellæ, vel gradus eclipticæ, eſt arcus circuli
              <lb/>
            maximi per mundi polos, & </s>
            <s xml:id="echoid-s10811" xml:space="preserve">centrum ſtellæ, ſeu gradum eclipticæ propoſitum
              <lb/>
            incedentis, interceptus inter Aequatorem, & </s>
            <s xml:id="echoid-s10812" xml:space="preserve">ſtellam, ſeu gradum eclipticæ.
              <lb/>
            </s>
            <s xml:id="echoid-s10813" xml:space="preserve">Tam autem latitudo, quàm declinatio ad ſummum eſſe poteſt 90. </s>
            <s xml:id="echoid-s10814" xml:space="preserve">grad. </s>
            <s xml:id="echoid-s10815" xml:space="preserve">Nul-
              <lb/>
            lum enim punctum cœli ab ecliptica, ſiue ab Aequatore magis recedere põt,
              <lb/>
            quàm per quadrantem. </s>
            <s xml:id="echoid-s10816" xml:space="preserve">Vnde fit, vt maximam latitudinem habeant poli Zo-
              <lb/>
            diaci; </s>
            <s xml:id="echoid-s10817" xml:space="preserve">Maximam autem declinationem poli mundi; </s>
            <s xml:id="echoid-s10818" xml:space="preserve">quandoquidem poli cu-
              <lb/>
            inſuis circuli maximi per quadrantem ab eius circumferentia ſeparantur, vt in
              <lb/>
            coroll. </s>
            <s xml:id="echoid-s10819" xml:space="preserve">propoſ. </s>
            <s xml:id="echoid-s10820" xml:space="preserve">16. </s>
            <s xml:id="echoid-s10821" xml:space="preserve">lib. </s>
            <s xml:id="echoid-s10822" xml:space="preserve">1. </s>
            <s xml:id="echoid-s10823" xml:space="preserve">Theod. </s>
            <s xml:id="echoid-s10824" xml:space="preserve">demonſtratum eſt à nobis.</s>
            <s xml:id="echoid-s10825" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s10826" xml:space="preserve">Ex his, quæ de latitudine, atque declinatione ſtellarum diximus, colligi-
              <lb/>
              <note position="right" xlink:label="note-293-02" xlink:href="note-293-02a" xml:space="preserve">Variæ habl
                <lb/>
              tudines ſtel
                <lb/>
              larum, quo-
                <lb/>
              ad latitudi-
                <lb/>
              nẽ, & decli-
                <lb/>
              nationem.</note>
            tur primum, ſtellas, ſeu planetas nonnunquam habere declinationem, nullam
              <lb/>
            autem latitudinem; </s>
            <s xml:id="echoid-s10827" xml:space="preserve">cuiuſmodi ſunt ſtellæ quæ extra Aequatorem reperiun-
              <lb/>
            tur, & </s>
            <s xml:id="echoid-s10828" xml:space="preserve">ſub ecliptica præcise collocantur, vt eſt Sol omni tempore, duobus
              <lb/>
            æquinoctijs exceptis. </s>
            <s xml:id="echoid-s10829" xml:space="preserve">Deinde, ſtellas nonnunquam habere latitudinem, nul-
              <lb/>
            lam vero declinationem, vt ſunt ſtellæ omnes, quæ extra eclipticam poſitæ ſub
              <lb/>
            Aequatore directe conſtituuntur. </s>
            <s xml:id="echoid-s10830" xml:space="preserve">Tertio, ſtellas nonnunquam carere, & </s>
            <s xml:id="echoid-s10831" xml:space="preserve">lati-
              <lb/>
            tudine, & </s>
            <s xml:id="echoid-s10832" xml:space="preserve">declinatione; </s>
            <s xml:id="echoid-s10833" xml:space="preserve">qualis eſt Sol tempore æquinoctiorum. </s>
            <s xml:id="echoid-s10834" xml:space="preserve">Quarto, ſtel-
              <lb/>
            las aliquas habere latitudinem Septentrionalem, & </s>
            <s xml:id="echoid-s10835" xml:space="preserve">declinationem etiam Se-
              <lb/>
            ptentrionalem; </s>
            <s xml:id="echoid-s10836" xml:space="preserve">quales ſunt ſtellæ, quæ & </s>
            <s xml:id="echoid-s10837" xml:space="preserve">ab Ecliptica, & </s>
            <s xml:id="echoid-s10838" xml:space="preserve">ab Aequatore in Bo-
              <lb/>
            ream deuiant. </s>
            <s xml:id="echoid-s10839" xml:space="preserve">Quinto, ſtellas aliquas habere@ & </s>
            <s xml:id="echoid-s10840" xml:space="preserve">latitudinem, & </s>
            <s xml:id="echoid-s10841" xml:space="preserve">declinatio-
              <lb/>
            nem Auſtralem; </s>
            <s xml:id="echoid-s10842" xml:space="preserve">cuiuſmodi ſunt ſtellæ, quæ tam ab Ecliptica, quàm ab Aequa-
              <lb/>
            tore in Auſtrum recedunt. </s>
            <s xml:id="echoid-s10843" xml:space="preserve">Sexto aliquas ſtellas habere latitudinem Septrio-
              <lb/>
            nalem, & </s>
            <s xml:id="echoid-s10844" xml:space="preserve">declinationem Auſtralem, vt ſunt ſtellæ poſitæ inter Aequatorem,
              <lb/>
            & </s>
            <s xml:id="echoid-s10845" xml:space="preserve">eam Eclipticæ medietatem, quæ ad Auſtrum vergit. </s>
            <s xml:id="echoid-s10846" xml:space="preserve">Septimo, @ſtellas ali-
              <lb/>
            quas habere latitudinem Auſtralem, & </s>
            <s xml:id="echoid-s10847" xml:space="preserve">declinationem Septentrionalem, cu-
              <lb/>
            iuſmodi ſunt ſtellæ inter Aequatorem, & </s>
            <s xml:id="echoid-s10848" xml:space="preserve">medietatem Zodiaci Borealcm com
              <lb/>
            prehenſæ.
              <lb/>
            </s>
            <s xml:id="echoid-s10849" xml:space="preserve">
              <note position="right" xlink:label="note-293-03" xlink:href="note-293-03a" xml:space="preserve">Quæ pun-
                <lb/>
              cta eclipticę
                <lb/>
              æquales hæ
                <lb/>
              beant decli
                <lb/>
              nationes,
                <lb/>
              quæ maio-
                <lb/>
              rẽ, vel mi-
                <lb/>
              norem.</note>
            </s>
          </p>
          <p>
            <s xml:id="echoid-s10850" xml:space="preserve">
              <emph style="sc">Obiter</emph>
            etiam hic admonendum eſt, ea puncta Eclipticæ, quæ æquè re-
              <lb/>
            mouentur à punctis æquinoctialibus, in quibus videlicet Aequator, & </s>
            <s xml:id="echoid-s10851" xml:space="preserve">Ecli-
              <lb/>
            ptica, ſe mutuo interſecant@, æquales habere declinationes: </s>
            <s xml:id="echoid-s10852" xml:space="preserve">Punctum vero ab
              <lb/>
            alterutro æquinoctiali puncto remotius maiorem declinationem habere: </s>
            <s xml:id="echoid-s10853" xml:space="preserve">Pun
              <lb/>
            ctum deniq; </s>
            <s xml:id="echoid-s10854" xml:space="preserve">remotiſſimum, nempe medium inter æquinoctialia puncta, quale
              <lb/>
            eſt prin@ip@um ♋, & </s>
            <s xml:id="echoid-s10855" xml:space="preserve">♑, declinationem habere maximam. </s>
            <s xml:id="echoid-s10856" xml:space="preserve">Ex quo eſſicitur,
              <lb/>
            in Ecliptica eſſe duo puncta non declinantia, ipſa ſcilicet æquinoctialia: </s>
            <s xml:id="echoid-s10857" xml:space="preserve">Qua-
              <lb/>
            terna vero puncta vbique æqualiter declinare ab Aequatore, bina videlicet Se
              <lb/>
            ptentrionali
              <unsure/>
            a, ac bina Auſtralia, quoniam ſemper reperiuntur quatuor puncta,
              <lb/>
            quæ æqualiter diſtant à duobus punctis æquinoctialibus. </s>
            <s xml:id="echoid-s10858" xml:space="preserve">Eodem modo puncta
              <lb/>
            Eclipticæ, quæ æquales habent declinationes æqualiter diſtabunt à punctis
              <lb/>
            æquinoctialibus: </s>
            <s xml:id="echoid-s10859" xml:space="preserve">Quod vero punctum maiorem habet declinationem, remo-
              <lb/>
            tius erit ab æquinoctij puncto: </s>
            <s xml:id="echoid-s10860" xml:space="preserve">Quod denique maximam declinationem obti
              <lb/>
            net, remotiſsimum erit ab æquinoctiali puncto. </s>
            <s xml:id="echoid-s10861" xml:space="preserve">Hæc autem omnia facile de-
              <lb/>
            monſtrari poſſunt ex elementis ſphæricis Theod. </s>
            <s xml:id="echoid-s10862" xml:space="preserve">& </s>
            <s xml:id="echoid-s10863" xml:space="preserve">triangulis ſphæricis.</s>
            <s xml:id="echoid-s10864" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div548" type="section" level="1" n="182">
          <head xml:id="echoid-head190" xml:space="preserve">VI.</head>
          <note position="right" xml:space="preserve">Ecliptiea
            <lb/>
          oſtendit ve
            <lb/>
          ra loca ſtel.</note>
          <p>
            <s xml:id="echoid-s10865" xml:space="preserve">
              <emph style="sc">Ostendit</emph>
            Ecliptica ſtellarum, atque planetarum vera loca in Zo-
              <lb/>
            diaco, vt non ſit difficile beneficio Eclipticæ noſſe, in quonam ſigno, & </s>
            <s xml:id="echoid-s10866" xml:space="preserve"/>
          </p>
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