Blancanus, Josephus, Sphaera mvndi, sev cosmographia demonstratiua , ac facile methodo tradita : in qua totius Mundi fabrica, vna cum nouis, Tychonis, Kepleri, Galilaei, aliorumq' ; Astronomorum adinuentis continentur ; Accessere I. Breuis introductio ad geographiam. II. Apparatus ad mathematicarum studium. III. Echometria, idest Geometrica tractatio de Echo. IV. Nouum instrumentum ad Horologia

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        <div xml:id="echoid-div288" type="section" level="1" n="198">
          <p>
            <s xml:id="echoid-s13003" xml:space="preserve">
              <pb o="140" file="0162" n="167" rhead="De Mundi Fabrica,"/>
            diata præcisè apparet, ſiue veſperi in D, ſiue manè in H, figuræ præcedentis; </s>
            <s xml:id="echoid-s13004" xml:space="preserve">debemus concípere triangu-
              <lb/>
            lum rectangulum O D S, vel O H S, in quo latus O S, notum eſt, diſtantia Sólis a terra; </s>
            <s xml:id="echoid-s13005" xml:space="preserve">præterea angulus
              <lb/>
            ad D, vel ad H, eſt rectus, vtantea oſtendit: </s>
            <s xml:id="echoid-s13006" xml:space="preserve">angulus etiam D O S, vel S O H, notus erit, dimidium quippè
              <lb/>
            totius anguli noti D O H, ergo per 9. </s>
            <s xml:id="echoid-s13007" xml:space="preserve">propoſ. </s>
            <s xml:id="echoid-s13008" xml:space="preserve">noſtri Apparat. </s>
            <s xml:id="echoid-s13009" xml:space="preserve">nota euadet O H, diſtantia Venerisa nob is;
              <lb/>
            </s>
            <s xml:id="echoid-s13010" xml:space="preserve">necnon H S, diſtantia eius a Sole. </s>
            <s xml:id="echoid-s13011" xml:space="preserve">depræhenditur autem in figura O D, vel O H, continere duas tertiasto-
              <lb/>
            tius O S, ſiue diametros terræ 762. </s>
            <s xml:id="echoid-s13012" xml:space="preserve">circiter. </s>
            <s xml:id="echoid-s13013" xml:space="preserve">Iam ad eandem diſtantiam, diameter eius apparens obſeruetur
              <lb/>
            accuratè, depræhendeturque eſſe min. </s>
            <s xml:id="echoid-s13014" xml:space="preserve">ferè 3′. </s>
            <s xml:id="echoid-s13015" xml:space="preserve">quibus habitis, ijſdem modis, quibus in Mercurio proportio-
              <lb/>
            nem diametri Veneris ad diametrum terræ inueniemus eſſe vt 6. </s>
            <s xml:id="echoid-s13016" xml:space="preserve">ad 11. </s>
            <s xml:id="echoid-s13017" xml:space="preserve">atque hinc proportio quoque ſphæ-
              <lb/>
            rarum innoteſcet, eritque ficuti 1. </s>
            <s xml:id="echoid-s13018" xml:space="preserve">ad 6. </s>
            <s xml:id="echoid-s13019" xml:space="preserve">propè. </s>
            <s xml:id="echoid-s13020" xml:space="preserve">Quare terra ſexies Venerem compræhendit. </s>
            <s xml:id="echoid-s13021" xml:space="preserve">Hinc etiam
              <lb/>
            ſequetur Venerem ad Lunam eſſe ſicuti 7. </s>
            <s xml:id="echoid-s13022" xml:space="preserve">ad 1. </s>
            <s xml:id="echoid-s13023" xml:space="preserve">propè: </s>
            <s xml:id="echoid-s13024" xml:space="preserve">ad Mercurium vero v@i 3 {1/2}. </s>
            <s xml:id="echoid-s13025" xml:space="preserve">ad 1. </s>
            <s xml:id="echoid-s13026" xml:space="preserve">ad Solem tandem. </s>
            <s xml:id="echoid-s13027" xml:space="preserve">
              <lb/>
            vti 1. </s>
            <s xml:id="echoid-s13028" xml:space="preserve">ad 840. </s>
            <s xml:id="echoid-s13029" xml:space="preserve">quaſi. </s>
            <s xml:id="echoid-s13030" xml:space="preserve">ijs modis quibus in Mercurio.</s>
            <s xml:id="echoid-s13031" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div289" type="section" level="1" n="199">
          <head xml:id="echoid-head213" style="it" xml:space="preserve">Appendix de calculo Veneris. Cap. VI.</head>
          <p>
            <s xml:id="echoid-s13032" xml:space="preserve">CAleulus Veneris perſimilis eſt calculo Mercurij: </s>
            <s xml:id="echoid-s13033" xml:space="preserve">nam motus apogæi primi Veneris tardiſſimus eſt, an-
              <lb/>
            nuo enim motu procedit in conſequentia ſecundis tantum 51″: </s>
            <s xml:id="echoid-s13034" xml:space="preserve">Vnde gradum vnum ſuperat annis fe-
              <lb/>
            rè 70. </s>
            <s xml:id="echoid-s13035" xml:space="preserve">quare pro calculo eius ſufliciant ſequentes annorum Radices.</s>
            <s xml:id="echoid-s13036" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div290" type="section" level="1" n="200">
          <head xml:id="echoid-head214" style="it" xml:space="preserve">Motus Apogai Vener. Radices.</head>
          <note position="right" xml:space="preserve">
            <lb/>
          # # Sig. # Gra. # ′.
            <lb/>
          # 1600 # 2 # 16 # 36
            <lb/>
          Annis # 1670 # 2 # 17 # 36.
            <lb/>
          # 1700 # 2 # 18 # 2
            <lb/>
          </note>
          <p>
            <s xml:id="echoid-s13037" xml:space="preserve">Motus verò Veueris in
              <lb/>
            longitudinem eſt idem cum
              <lb/>
            Solis, ac Mercurij motibus
              <lb/>
            in longitudinem: </s>
            <s xml:id="echoid-s13038" xml:space="preserve">quare ha-
              <lb/>
            bito, ex calculo, loco Solis in
              <lb/>
            Zodiaco, habemus ſimul lo-
              <lb/>
            cus centri epicycli Veneris,
              <lb/>
            & </s>
            <s xml:id="echoid-s13039" xml:space="preserve">Mercurij.</s>
            <s xml:id="echoid-s13040" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s13041" xml:space="preserve">Reſtat igitur motus Ano-
              <lb/>
            maliæ, quo Venus in epicy@
              <lb/>
            clo reuoluitur: </s>
            <s xml:id="echoid-s13042" xml:space="preserve">pro cnius calculatione damus ſequentem Tabuiam.</s>
            <s xml:id="echoid-s13043" xml:space="preserve"/>
          </p>
          <figure number="97">
            <image file="0162-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0162-01"/>
          </figure>
        </div>
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    </echo>
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