Clavius, Christoph
,
In Sphaeram Ioannis de Sacro Bosco commentarius
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Comment. in I. cap. Sphæræ
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toris exiſteret extra axem mundi, efficeretur primum, In ſphæra recta nunqu@
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xml:space
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eſſe in pla-
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no Aequa-
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toris extra
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axem mu@
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di.</
note
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fieri æquinoctium, niſi in eo in Horizonte, qui per centrum mundi tranſit. </
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.</
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<
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<
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xml:space
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ius centrum A; </
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tor D E; </
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<
s
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xml:space
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">axis mundi
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B C; </
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xml:space
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">& </
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<
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xml:space
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">terra in F, ſi-
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ue ſupra axem mun-
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di, fiue infra; </
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<
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xml:space
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zon rectus H G, non
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per centrum mundi
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A, tranſiens, qui pa-
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rallelus erit axi B C,
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cum Aequator ad re-
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ctos inſiſtat angulos
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Horizonti recto. </
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<
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ſpicuum igitur eſt, tã
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Aequatorẽ, quàm re-
<
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liquos parallelos So-
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lis inęqualiter ab Ho-
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/>
rizonte recto diuidi,
<
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cum non tranſeat per
<
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centrum, aut polos
<
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mundi: </
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<
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xml:space
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">Quare perpe-
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tuo fient dies inæqua-
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les noctibus, quod
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eſt contra omnem experientiam, cũ in ſphæra recta perpetuũ ſit æquinoctium.</
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<
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emph
>
. </
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xml:space
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">Nullus in eadem ſphæra recta uideret medietatem cęli, ſed par
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tem minorem, vel maiorem medietate, ut eadem figura indicat; </
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<
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xml:space
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">quod ſenſui
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aduerſatur. </
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xml:space
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lum in eo Horizonte, qui per mundi cẽtrum ducitur, medietas cæli uideretur</
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<
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<
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>
. </
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xml:space
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">Eædem ſtellæ tempore ſereno non apparerent ſemper eiuſdem
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magnitudinis. </
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<
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xml:space
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">Si enim terra eſt in Aequinoctialis circuli plano, & </
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mundi uerſus meridiem, hoc eſt, verſus Zenith, apparebunt ſtellę eædem maio
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res in Meridiano circulo conſtitutæ, quàm in oriente, uel occidente, cum ibi
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propinquiores exiſtant: </
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<
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xml:space
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">Si uero vergit ad mediam noctem, hoc eſt, uerſus Na-
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dir, maiores conſpicientur in oriente, uel occidente collocatæ, quàm in Meri-
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diano circulo: </
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">Si autem ſita eſt uerſus ortum, uel occaſum, maiores uidebũtur
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poſitę in oriẽte quoque, uel occidente. </
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</
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">Accedit etiam, quod hoc poſteriori modo tempus antemeridianum minime
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æquale erit pomeridiano; </
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">propterea quod Meridianus circulus per uerticem
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capitis incedit qui hac ratione eſſe non poteſt in medio Hemiſphærij, ſed uel
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magis ad ortũ accedit, uel ad occaſum, ut manifeſte conſtat ex ſphæra materia-
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li. </
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">Solum igitur Phænomena locum habebunt in ſphæra recta, quando Terra
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in medio mundi collocabitur, ut in puncto A, Horizonte exiſtente recta B C.</
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<
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. </
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<
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">In ſphæra obliqua aut nullum omnino fieret æquinoctium,
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aut certe, ſi alicubi fieret, hoc non in medio loco inter ſolſtitium æſtiuum, atq;
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</
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">hybernum contingeret; </
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enim rurſus ſphæra A B C D, cuius centrum F; </
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">Aequator B D; </
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