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-div269" type="section" level="1" n="183">
          <p>
            <s xml:id="echoid-s12510" xml:space="preserve">
              <pb o="134" file="0156" n="161" rhead="De Mundi Fabrica,"/>
            gentes vtrimq; </s>
            <s xml:id="echoid-s12511" xml:space="preserve">in punctis B D. </s>
            <s xml:id="echoid-s12512" xml:space="preserve">epicyclum; </s>
            <s xml:id="echoid-s12513" xml:space="preserve">quibus aliæ ſimiles intelligantur tangentes alias minores ſpiras.</s>
            <s xml:id="echoid-s12514" xml:space="preserve">
              <unsure/>
            ſit
              <lb/>
            etiam ducta T S A. </s>
            <s xml:id="echoid-s12515" xml:space="preserve">ſecans bifariam epicyclum, & </s>
            <s xml:id="echoid-s12516" xml:space="preserve">ſpiras eius in punctis C L G I E A. </s>
            <s xml:id="echoid-s12517" xml:space="preserve">puncta igitur ſuperiora
              <lb/>
            A E I. </s>
            <s xml:id="echoid-s12518" xml:space="preserve">ſunt ea à
              <unsure/>
            quibus numeratio Anomaliæ incipit, & </s>
            <s xml:id="echoid-s12519" xml:space="preserve">quæ apogęa ſpirarum dici poſſunt: </s>
            <s xml:id="echoid-s12520" xml:space="preserve">reliqua inferio-
              <lb/>
            ra G L C. </s>
            <s xml:id="echoid-s12521" xml:space="preserve">dici poſſunt perigæa ſpirarum, quod in illis planeta maximè a
              <unsure/>
            terra recedat, in his vero maximè ad
              <lb/>
            @erram accedat: </s>
            <s xml:id="echoid-s12522" xml:space="preserve">pars ſuperior D A B. </s>
            <s xml:id="echoid-s12523" xml:space="preserve">definitur à lineis tangentibus in punctis D B. </s>
            <s xml:id="echoid-s12524" xml:space="preserve">& </s>
            <s xml:id="echoid-s12525" xml:space="preserve">diuiditur pariter ab in-
              <lb/>
            feriori B O D. </s>
            <s xml:id="echoid-s12526" xml:space="preserve">idem intelligas in alijs ſpiris. </s>
            <s xml:id="echoid-s12527" xml:space="preserve">quoniam igitur planeta pergit in ſuperiori arcu verſus orien-
              <lb/>
            tem à
              <unsure/>
            D. </s>
            <s xml:id="echoid-s12528" xml:space="preserve">ad A. </s>
            <s xml:id="echoid-s12529" xml:space="preserve">& </s>
            <s xml:id="echoid-s12530" xml:space="preserve">hinc ad B. </s>
            <s xml:id="echoid-s12531" xml:space="preserve">in inferiori vero contra, ſequitur eum ibi eſſe velociorem
              <unsure/>
            in Zodiaco, quam in
              <lb/>
            inferiori, quia ibi tam motus centri epicycli, quam motus ipſius planetæ tendunt ad eaſdem partes orienta@
              <lb/>
            les: </s>
            <s xml:id="echoid-s12532" xml:space="preserve">in inferiori vero tardiorem, quia hic motus planetæ contrarius eſt motui epicycli, adeo vt etiam retro-
              <lb/>
            gredi in Zodiaco videatur. </s>
            <s xml:id="echoid-s12533" xml:space="preserve">Hinc ſequitur planetam directum dici, quando adeo velox eſt, vt in Zodiaco pro-
              <lb/>
            grediatur: </s>
            <s xml:id="echoid-s12534" xml:space="preserve">Retrogradum vero quando in inferiori arcu ſpiræ, plus retrocedit in Zodiaco, quam progredia-
              <lb/>
            tur epicycli centrum, ſic enim videtur in Zo diaco repedare: </s>
            <s xml:id="echoid-s12535" xml:space="preserve">Stationarium tandem quando in eodem Zu
              <unsure/>
            -
              <lb/>
            diaci loco perſiſtit, quod accidit parum infra puncta contactuum B D. </s>
            <s xml:id="echoid-s12536" xml:space="preserve">v. </s>
            <s xml:id="echoid-s12537" xml:space="preserve">g. </s>
            <s xml:id="echoid-s12538" xml:space="preserve">in R V. </s>
            <s xml:id="echoid-s12539" xml:space="preserve">ſtatio prima eſt in R. </s>
            <s xml:id="echoid-s12540" xml:space="preserve">ſe-
              <lb/>
            @unda in V.</s>
            <s xml:id="echoid-s12541" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12542" xml:space="preserve">Arcus V A R. </s>
            <s xml:id="echoid-s12543" xml:space="preserve">dicitur arcus directionis, quod planeta eum percurrens in Zodiaco proficiat, vnde & </s>
            <s xml:id="echoid-s12544" xml:space="preserve">dire-
              <lb/>
            @tus fit: </s>
            <s xml:id="echoid-s12545" xml:space="preserve">reliquus arcus R C V. </s>
            <s xml:id="echoid-s12546" xml:space="preserve">arcus eſt regreſſus, in quo ſcilicet planeta retrogradus apparet.</s>
            <s xml:id="echoid-s12547" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12548" xml:space="preserve">Velox præterea planeta dicitur, cùm velocior eſt quàm epicycli centrum: </s>
            <s xml:id="echoid-s12549" xml:space="preserve">Tardus vero cũ eodem ſegnior
              <lb/>
            eſt: </s>
            <s xml:id="echoid-s12550" xml:space="preserve">Mediocris, & </s>
            <s xml:id="echoid-s12551" xml:space="preserve">æqualis quando cum eodem æqualiter incedit, qui motus medius appellatur. </s>
            <s xml:id="echoid-s12552" xml:space="preserve">Orientalis,
              <lb/>
            & </s>
            <s xml:id="echoid-s12553" xml:space="preserve">matutinus dicitur cum manè ante Solem oritur, quod accidit in ſemicirculo occidentali C D A. </s>
            <s xml:id="echoid-s12554" xml:space="preserve">dum vi-
              <lb/>
            delicet planeta ſcandit à
              <unsure/>
            perigæis ſpirarum ab apogæa, quia ibi præcedit Solem in motu diurno, vt conſide-
              <lb/>
            ranti patere poteſt. </s>
            <s xml:id="echoid-s12555" xml:space="preserve">Occidentalis, & </s>
            <s xml:id="echoid-s12556" xml:space="preserve">veſpertinus, cum poſt Solem occumbit; </s>
            <s xml:id="echoid-s12557" xml:space="preserve">quod accidit dum planeta de-
              <lb/>
            ſcendit in ſemicirculo orientali A B C. </s>
            <s xml:id="echoid-s12558" xml:space="preserve">quia ibi ſequitur Solem in motu diurno.</s>
            <s xml:id="echoid-s12559" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12560" xml:space="preserve">Ortus heliacus ſeu ſolaris matutinus planetæ, fit quando planeta mane ante Solem incipit extra ſolares ra-
              <lb/>
            dios tranſactis perigæis C L G, apparere.</s>
            <s xml:id="echoid-s12561" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12562" xml:space="preserve">Occaſus heliacus@eu ſolaris matutinus, fit cũ oriente Sole, planeta qui prius apparebat Soli appropinquans
              <lb/>
            apud apogæa ſpirarum A E I, Solis fulgorem ſubiens, occultatur.</s>
            <s xml:id="echoid-s12563" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12564" xml:space="preserve">Ortus heliacus veſpertinus fit, cum planeta tranſacto ſpiræ apogæo iam verſatur in ſemicirculo orien tali
              <lb/>
            A B C. </s>
            <s xml:id="echoid-s12565" xml:space="preserve">in quo Solẽ
              <unsure/>
            ſequitur, & </s>
            <s xml:id="echoid-s12566" xml:space="preserve">propterea poſt Solis occaſum veſperi in occidente è fulgore Solis emergens,
              <lb/>
            apparere incipit.</s>
            <s xml:id="echoid-s12567" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12568" xml:space="preserve">Occaſus heliacus veſpertinus fit, quando planeta ita ad perigæum ſpirarum acceſſerit, vt cum antea vide-
              <lb/>
            retur, non amplius ob Solis fulgorem, quem iam ſubijt, appareat.</s>
            <s xml:id="echoid-s12569" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12570" xml:space="preserve">In hoc autem ſpirarum epicycli ambitu, bis Soli, reſpectu noſtri, qui ſumus in centro mundi, videtur con-
              <lb/>
            iungi, ideſt, in perigæis, & </s>
            <s xml:id="echoid-s12571" xml:space="preserve">apogęis ſpirarum, quando directè ſub Sole, & </s>
            <s xml:id="echoid-s12572" xml:space="preserve">ſupra Solem reperitur in linea T A.
              <lb/>
            </s>
            <s xml:id="echoid-s12573" xml:space="preserve">in punctis vero linearum tangentium B D. </s>
            <s xml:id="echoid-s12574" xml:space="preserve">maximos a Sole receſius patitur, in maiori ambitu grad. </s>
            <s xml:id="echoid-s12575" xml:space="preserve">ferè 28. </s>
            <s xml:id="echoid-s12576" xml:space="preserve">in
              <lb/>
            minori gr. </s>
            <s xml:id="echoid-s12577" xml:space="preserve">20. </s>
            <s xml:id="echoid-s12578" xml:space="preserve">quapropter nunquam Soli opponi poteſt, ſed veluti ſeruus eius, parum ab eius latere diicedit: </s>
            <s xml:id="echoid-s12579" xml:space="preserve">
              <lb/>
            quæ cauſa eſt cur propè horizontem tantum in vaporoſo, ac condenſo aere ægrè conſpici ac obſeruari poſſit: </s>
            <s xml:id="echoid-s12580" xml:space="preserve">
              <lb/>
            ſimul enim ab aere craſſo, atq; </s>
            <s xml:id="echoid-s12581" xml:space="preserve">a Solis fulgo@e aſpectus eius offuſcatur. </s>
            <s xml:id="echoid-s12582" xml:space="preserve">Prædicta verò omnia ſunt etiam com-
              <lb/>
            munia Veneri, partim etiam alijs planetis, vt poſtea patebit.</s>
            <s xml:id="echoid-s12583" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div271" type="section" level="1" n="184">
          <head xml:id="echoid-head198" style="it" xml:space="preserve">Figura Mercurij. Cap. III.</head>
          <p>
            <s xml:id="echoid-s12584" xml:space="preserve">EXiſtimandum eſt eſſe ſphęricum, non tamen Geometricè, ſed ſicuti Luna aſperitatibus refertum; </s>
            <s xml:id="echoid-s12585" xml:space="preserve">ſi enim
              <lb/>
            perfectè ſphæricus eſſ
              <unsure/>
            et, vnicus vix ab ipſo Solis radius nobis reflecteretur, qui diſperderetur, ac propte-
              <lb/>
            rea ipſum Mercuriũ neutiquam videremus: </s>
            <s xml:id="echoid-s12586" xml:space="preserve">ſigura namq; </s>
            <s xml:id="echoid-s12587" xml:space="preserve">perfectè ſphærica & </s>
            <s xml:id="echoid-s12588" xml:space="preserve">terſa lumen occurrens vndiq;
              <lb/>
            </s>
            <s xml:id="echoid-s12589" xml:space="preserve">diſpergit, vt ex perientia, & </s>
            <s xml:id="echoid-s12590" xml:space="preserve">ratio Optica docet. </s>
            <s xml:id="echoid-s12591" xml:space="preserve">Enimuero Elementa quatuor ſphærica figura prædita ſunt; </s>
            <s xml:id="echoid-s12592" xml:space="preserve">
              <lb/>
            Luna pariter, & </s>
            <s xml:id="echoid-s12593" xml:space="preserve">Sol, Venus etiam perſpicue rotunda apparet; </s>
            <s xml:id="echoid-s12594" xml:space="preserve">quidni igitur Mercurius rotundus erit?</s>
            <s xml:id="echoid-s12595" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div272" type="section" level="1" n="185">
          <head xml:id="echoid-head199" style="it" xml:space="preserve">Illuminatio Mercurij, & vmbra. Cap. IV.</head>
          <p>
            <s xml:id="echoid-s12596" xml:space="preserve">CVm fit ſphæricus, atq; </s>
            <s xml:id="echoid-s12597" xml:space="preserve">à Sole illuſtretur, puto ipſum inſtar Lune, ſeu potius inſtar Veneris corniculatim,
              <lb/>
            & </s>
            <s xml:id="echoid-s12598" xml:space="preserve">dimidiatum, & </s>
            <s xml:id="echoid-s12599" xml:space="preserve">plenè illuminari, &</s>
            <s xml:id="echoid-s12600" xml:space="preserve">c. </s>
            <s xml:id="echoid-s12601" xml:space="preserve">vt poſtea in Venere videbimus; </s>
            <s xml:id="echoid-s12602" xml:space="preserve">hos enim ambos planetas eodẽ
              <lb/>
            prorſus modo colluſtrari a Sole exiſtimo.</s>
            <s xml:id="echoid-s12603" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s12604" xml:space="preserve">Sed quæritur quanta ſit vmbra Mercurij, & </s>
            <s xml:id="echoid-s12605" xml:space="preserve">an ad Venerem pertingat, eamq; </s>
            <s xml:id="echoid-s12606" xml:space="preserve">eclypſet. </s>
            <s xml:id="echoid-s12607" xml:space="preserve">Reſpondeo longi-
              <lb/>
            tudinem vmbræ eius eſſe ſemidiametros terræ circiter 43. </s>
            <s xml:id="echoid-s12608" xml:space="preserve">quod eodẽ modo, ac ſiguratione reperi, qua etiam
              <lb/>
            quantitatem vmbræ terreſtris, quæ ab eo multo pluſquam ducentis terræ ſemidiametris ſemper recedit.</s>
            <s xml:id="echoid-s12609" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div273" type="section" level="1" n="186">
          <head xml:id="echoid-head200" style="it" xml:space="preserve">Magnitudo Mercurij, & Epicycli eius. Cap. V.</head>
          <p>
            <s xml:id="echoid-s12610" xml:space="preserve">VT antea vidimus, duo neceſſaria ſunt ad magnitudinem planetarum inquirẽdam. </s>
            <s xml:id="echoid-s12611" xml:space="preserve">primum eſt corum di-
              <lb/>
            ſtantia a mundi medio; </s>
            <s xml:id="echoid-s12612" xml:space="preserve">ſecundum eſt eorumdem apparens diameter in eadẽ diſtantia: </s>
            <s xml:id="echoid-s12613" xml:space="preserve">quæ duo ſic in Mer
              <unsure/>
              <lb/>
            ourio obtinebis; </s>
            <s xml:id="echoid-s12614" xml:space="preserve">Eum obſerua quando maximè à Sole recedit; </s>
            <s xml:id="echoid-s12615" xml:space="preserve">præſertim in maiori epicycli ſpira, vbi minus
              <lb/>
            a Solis iubare, offuſcatur; </s>
            <s xml:id="echoid-s12616" xml:space="preserve">ibi enim ſortitur eandem cum Sole a terra diſtantiam, quæ quando mediocris eſt,
              <lb/>
            continet
              <unsure/>
            terræ ſemidiametros 1142. </s>
            <s xml:id="echoid-s12617" xml:space="preserve">tunc igitur obſerua apparentem eius diame
              <unsure/>
            trum per quadrantem, </s>
          </p>
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