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-div329" type="section" level="1" n="234">
          <pb o="157" file="0179" n="184" rhead="Liber Decimnsſextus."/>
        </div>
        <div xml:id="echoid-div331" type="section" level="1" n="235">
          <head xml:id="echoid-head250" style="it" xml:space="preserve">COROLLARIVM.</head>
          <p>
            <s xml:id="echoid-s14025" xml:space="preserve">EX dictis de motu cometarum videtur non omnino incongruum eſſe exiſtimare cometas deſcribere ſuo
              <lb/>
            proprio motu magnum quempiam epicyclum, hoc enim poſito ſaluantur eorum phænomena; </s>
            <s xml:id="echoid-s14026" xml:space="preserve">ſic enim
              <lb/>
            initio tardi, in medio veloces, in fine iterum ſegnes eſſent, hinc etiam maiores, & </s>
            <s xml:id="echoid-s14027" xml:space="preserve">minores apparebunt, ſi-
              <lb/>
            cuti etiam veri planetæ. </s>
            <s xml:id="echoid-s14028" xml:space="preserve">ſed cur plures initio apparent celeriores? </s>
            <s xml:id="echoid-s14029" xml:space="preserve">ſi in epicyclo reuoluerentur, omnes eſſent
              <lb/>
            initio tardiores, quia in deſcenſu primo apparerent. </s>
            <s xml:id="echoid-s14030" xml:space="preserve">Reſpondere poſſumus plurimos initio non aparere, ſeu
              <lb/>
            non conſpici, propter eorum paruitatem, niſi enim magni ſint, in ſe hominum oculos non conuertunt. </s>
            <s xml:id="echoid-s14031" xml:space="preserve">opi-
              <lb/>
            nior igitur eos quidem in cælo diu viſibiles eſſe, quamuis non animaduertantur; </s>
            <s xml:id="echoid-s14032" xml:space="preserve">quod ſi tunc, cum poſſunt,
              <lb/>
            cernerentur, tardi, ac minores apparent, quam poſtea. </s>
            <s xml:id="echoid-s14033" xml:space="preserve">Præterea nonnulli diu latent ob Solis vicinitatem;
              <lb/>
            </s>
            <s xml:id="echoid-s14034" xml:space="preserve">qua propter cum poſtea heliacè oriuntur, iam circa epicycli perigæum mouemur, ac propterea velociores,
              <lb/>
            ac maiores, quam poſtea huius rei exemplum habemus in noua ſtella anni 1572. </s>
            <s xml:id="echoid-s14035" xml:space="preserve">quam Tycho pag. </s>
            <s xml:id="echoid-s14036" xml:space="preserve">304. </s>
            <s xml:id="echoid-s14037" xml:space="preserve">ſcri-
              <lb/>
            bit multo prius conſpectam eſſe ab Aurigis, Nautis, & </s>
            <s xml:id="echoid-s14038" xml:space="preserve">Ruſticis, quam a Philoſophi, aut Aſtronom is, quare
              <lb/>
            idem cometis ferè omnibus accidere opinior.</s>
            <s xml:id="echoid-s14039" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div332" type="section" level="1" n="236">
          <head xml:id="echoid-head251" style="it" xml:space="preserve">Barba ſeu cauda Cometarum.</head>
          <p>
            <s xml:id="echoid-s14040" xml:space="preserve">ILlud maximè notandum in omnibus cometis barbatis, ſeu caudatis, barbam hanc extendi ad partes Soli@
              <lb/>
            auerſas, ideſt, ſi Sol ſit in occidente, cometa directè barbam proijciet in orientem; </s>
            <s xml:id="echoid-s14041" xml:space="preserve">è contra ſi Sol fuerit in
              <lb/>
            oriente, cauda in occidentem recta dirigetur. </s>
            <s xml:id="echoid-s14042" xml:space="preserve">in quo recentiores omnes conſentiunt. </s>
            <s xml:id="echoid-s14043" xml:space="preserve">Petrus Appia@us id
              <lb/>
            diligentiſſimè in 8. </s>
            <s xml:id="echoid-s14044" xml:space="preserve">cometis; </s>
            <s xml:id="echoid-s14045" xml:space="preserve">Gemma Friſius in alijs, Tycho tandem in quinque barbatis idem exactè admo-
              <lb/>
            dum obſeruauit, in vno ſolum dubitat, qui videbatur caudam non a Sole, ſed a Venere directè auertere; </s>
            <s xml:id="echoid-s14046" xml:space="preserve">quod
              <lb/>
            tamen alicui viſus fallaciæ tribuendum putat. </s>
            <s xml:id="echoid-s14047" xml:space="preserve">Cauſam huius reiputant eſſe Solis fulgorem, corous cometæ
              <lb/>
            percadentem, & </s>
            <s xml:id="echoid-s14048" xml:space="preserve">inde in oppoſitam partem emicantem: </s>
            <s xml:id="echoid-s14049" xml:space="preserve">ſicuti etiam videmus vitream pilam Soli, expoſitam,
              <lb/>
            in partem Soli auerſam lumen Solis ſe peruadens, ita vnire ac tranſmittere, vt non ſolum appareat, ſed com-
              <lb/>
            burat etiam. </s>
            <s xml:id="echoid-s14050" xml:space="preserve">Veruntamen caudæ curuitas, & </s>
            <s xml:id="echoid-s14051" xml:space="preserve">figura non accuta, ſed lata, difficultatem aliquam ingerit. </s>
            <s xml:id="echoid-s14052" xml:space="preserve">Cæ-
              <lb/>
            terum ſicuti lumen Solis in aere, vel æthere puro neutiquam apparet ſic etiam cauda cometæ in puro ac om-
              <lb/>
            nino diaphano cælo ſpectari minimè poterit, quare putandum eſt huic caudo opacam aliquam ſubeſſe mate-
              <lb/>
            riam. </s>
            <s xml:id="echoid-s14053" xml:space="preserve">Maxima autem caudæ longitudo ex obſeruatione d
              <unsure/>
            eprehenſa eſt grad. </s>
            <s xml:id="echoid-s14054" xml:space="preserve">22.</s>
            <s xml:id="echoid-s14055" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div333" type="section" level="1" n="237">
          <head xml:id="echoid-head252" style="it" xml:space="preserve">Parallaxes Cometarum. Cap. III.</head>
          <p>
            <s xml:id="echoid-s14056" xml:space="preserve">INgenioſa acſubtilitate plena res eſt parallaxis, per eam enim totius mundanæ fabricæ ordinem ac ſitum
              <lb/>
            perſcrutamur. </s>
            <s xml:id="echoid-s14057" xml:space="preserve">quod ſi in cæteris, ordinarijſque ſyderibus vſum habet præclariſſimum, in cometis certè
              <lb/>
            omnem ſuperat admirationem, qui enim fieri poteſt, in re adeo vaga, noua, & </s>
            <s xml:id="echoid-s14058" xml:space="preserve">inconſtanti, vt parallaxis in-
              <lb/>
            dagetur? </s>
            <s xml:id="echoid-s14059" xml:space="preserve">veteres tamen Aſtronomi hanc in cometis curam omittentes, proinde nihil certi de eorum a terris
              <lb/>
            diſtantia tradiderunt. </s>
            <s xml:id="echoid-s14060" xml:space="preserve">recentiores igitur latini hanc gloriæ palmam ſibi oblatam minimè neglexerunt. </s>
            <s xml:id="echoid-s14061" xml:space="preserve">Pa-
              <lb/>
            rallaxim igitur cometarum dupliciter indagant. </s>
            <s xml:id="echoid-s14062" xml:space="preserve">Primo ex diuerſis, & </s>
            <s xml:id="echoid-s14063" xml:space="preserve">valde diffiſis locis, ſecundum terræ la-
              <lb/>
            titudinem, quorum ſcilicet poli altitudines valde differant. </s>
            <s xml:id="echoid-s14064" xml:space="preserve">exemplo ſit illa, quam Tycho Vraniburgi in Da-
              <lb/>
            nia, & </s>
            <s xml:id="echoid-s14065" xml:space="preserve">Tadæus Hagecius Pragæ in Boemia obſeruarunt; </s>
            <s xml:id="echoid-s14066" xml:space="preserve">quæ duo loca d@fferunt in altitudine poli, nam Vra-
              <lb/>
            niburgum altiorem habet polum 6. </s>
            <s xml:id="echoid-s14067" xml:space="preserve">gradibus, quam Praga: </s>
            <s xml:id="echoid-s14068" xml:space="preserve">& </s>
            <s xml:id="echoid-s14069" xml:space="preserve">præterea ſunt ſub eodem ferè meridiano, quod
              <lb/>
            negotium illud multum iuuat. </s>
            <s xml:id="echoid-s14070" xml:space="preserve">vterque pręterea eodem die, eademque hora, & </s>
            <s xml:id="echoid-s14071" xml:space="preserve">conſequenter in eodem cir-
              <lb/>
            culo verticali cometam obſeruauit. </s>
            <s xml:id="echoid-s14072" xml:space="preserve">Obſeruauit autem vterque quantum d@ſtaret a ſtella, quæ Vultur appel-
              <lb/>
            latur, ideſt, quot gradibus eſſet infra eam, erat enim in eodem verticuli cum ea: </s>
            <s xml:id="echoid-s14073" xml:space="preserve">vterque autem reperit ean-
              <lb/>
            dem diſtantiam; </s>
            <s xml:id="echoid-s14074" xml:space="preserve">& </s>
            <s xml:id="echoid-s14075" xml:space="preserve">conſequenter vterq; </s>
            <s xml:id="echoid-s14076" xml:space="preserve">aſpexit eum eſſe in eodem cæli
              <lb/>
              <figure xlink:label="fig-0179-01" xlink:href="fig-0179-01a" number="104">
                <image file="0179-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/xxxxxxxx/figures/0179-01"/>
              </figure>
            puncto, ac proinde nullam pati parallaxim, ideſt, nullam exhibere va-
              <lb/>
            rietatem aſpectus ex locis adeo ſeiunctis. </s>
            <s xml:id="echoid-s14077" xml:space="preserve">ſit in præſenti figura A. </s>
            <s xml:id="echoid-s14078" xml:space="preserve">Vra-
              <lb/>
            niburgum, B. </s>
            <s xml:id="echoid-s14079" xml:space="preserve">Praga, F. </s>
            <s xml:id="echoid-s14080" xml:space="preserve">Stella Vulturis, C. </s>
            <s xml:id="echoid-s14081" xml:space="preserve">Cometa, in eodem vertica-
              <lb/>
            li F C E. </s>
            <s xml:id="echoid-s14082" xml:space="preserve">iam diſtantia C F. </s>
            <s xml:id="echoid-s14083" xml:space="preserve">vtriq; </s>
            <s xml:id="echoid-s14084" xml:space="preserve">viſa eſt gr. </s>
            <s xml:id="echoid-s14085" xml:space="preserve">17. </s>
            <s xml:id="echoid-s14086" xml:space="preserve">min. </s>
            <s xml:id="echoid-s14087" xml:space="preserve">52. </s>
            <s xml:id="echoid-s14088" xml:space="preserve">quare vterque
              <lb/>
            eam in eodem cæli loco conſpexit. </s>
            <s xml:id="echoid-s14089" xml:space="preserve">quod ſignum euidens eſt Cometam
              <lb/>
            ſublimius fuiſſe Luna, & </s>
            <s xml:id="echoid-s14090" xml:space="preserve">alijs planetis, qui ſenſibilem exhibent paralla-
              <lb/>
            xim; </s>
            <s xml:id="echoid-s14091" xml:space="preserve">ſi enim fuiſ@et in eadem diſtantia cum Luna a terris, v.</s>
            <s xml:id="echoid-s14092" xml:space="preserve">g. </s>
            <s xml:id="echoid-s14093" xml:space="preserve">in D. </s>
            <s xml:id="echoid-s14094" xml:space="preserve">tũc
              <lb/>
            Vraniburgi conſpecta fuiſſet in E. </s>
            <s xml:id="echoid-s14095" xml:space="preserve">humilior, & </s>
            <s xml:id="echoid-s14096" xml:space="preserve">remotior a Stella F. </s>
            <s xml:id="echoid-s14097" xml:space="preserve">vt
              <lb/>
            oſtendit linea viſiua A D E. </s>
            <s xml:id="echoid-s14098" xml:space="preserve">ſi fuiſſet in cõcauitate regionis lunaris, quę
              <lb/>
            a terra diſtat ſemid. </s>
            <s xml:id="echoid-s14099" xml:space="preserve">terræ 52. </s>
            <s xml:id="echoid-s14100" xml:space="preserve">exhibuiſſet parallaxim min. </s>
            <s xml:id="echoid-s14101" xml:space="preserve">7. </s>
            <s xml:id="echoid-s14102" xml:space="preserve">ferè, vt pa-
              <lb/>
            tebit ex conſtructione figuræ, quæ habeat poli altitudines, quas habet
              <lb/>
            Vraniburgum, & </s>
            <s xml:id="echoid-s14103" xml:space="preserve">Praga, & </s>
            <s xml:id="echoid-s14104" xml:space="preserve">c. </s>
            <s xml:id="echoid-s14105" xml:space="preserve">(quas videas apud Tychonem pag. </s>
            <s xml:id="echoid-s14106" xml:space="preserve">125.
              <lb/>
            </s>
            <s xml:id="echoid-s14107" xml:space="preserve">in lib. </s>
            <s xml:id="echoid-s14108" xml:space="preserve">de Cometis) & </s>
            <s xml:id="echoid-s14109" xml:space="preserve">præterea Cometa diſtet à terra ſemid. </s>
            <s xml:id="echoid-s14110" xml:space="preserve">52. </s>
            <s xml:id="echoid-s14111" xml:space="preserve">in hu@
              <lb/>
            iuſmodi enim figura, non vterque inſpector eundem cæli locum Co-
              <lb/>
            metæ conſpiciet, ſed diuerſitas aſpectus prædicta apparebit, hoc igitur modo, ex diuerſis locis parallaxi@
              <lb/>
            depræbenditur.</s>
            <s xml:id="echoid-s14112" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
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