Clavius, Christoph
,
In Sphaeram Ioannis de Sacro Bosco commentarius
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Ioan. de Sacro Boſco.
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grad. </
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<
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<
s
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xml:space
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">Conſtat igitur huius ſtellæ declinationem ſeptentrionalẽ ſem
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per incrementum ſuſcepiſſe, quoniam nimrum exiſtit in medietate ſphæræ,
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quæ a principio ♑, per ♈, ad principium ♋, porrigitur. </
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<
s
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xml:space
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">Similiter Alhabor,
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quæ ſtella dicit̃ canis maior, (eſt enim hæc ſtella in ore canis maioris, & </
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<
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pore antiquorum exiſtebat in eadem ſphæræ medietate) tẽpore Timocharis
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habuit declinationem auſtralem ſiue meridionalem grad. </
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<
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<
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<
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re deinde Abrachis ſiue Hipparchi grad. </
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<
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<
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<
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lemæi grad. </
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<
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<
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<
s
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xml:space
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">Vbi etiam perſpicuum eſt, ſemper decreuiſſe declina
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tionem auſtralem: </
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<
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xml:space
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">At vero hac noſtra tempeſtate, quoniã eadem ſtella repe-
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ritur in altera ſphæræ medietate, habet iterũ deelinationem auſtralẽ grad.
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</
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<
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<
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xml:space
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<
s
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xml:space
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">Vbi manifeſte perſpicitur, eandem declinationem auſtralem iam ite-
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rum creſcere. </
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<
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xml:space
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">Poſtremo (plura enim huiuſmodi exempla inuenies apud Pto-
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lemæũ, & </
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<
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<
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">de Regiom.) </
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">Azimech, quæ ſtella appellatur ſpica ♍, habuit
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apud Timocharẽ declinationẽ ſeptẽtrionalẽ. </
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<
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ſiue Hipparchum, ſolum min. </
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<
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<
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<
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ſtralem min. </
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<
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<
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xml:space
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8. </
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<
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<
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<
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">fere; </
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<
s
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xml:space
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">Ex quo exemplo liquido conſtat, huius ſtellæ declinationem
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ſeptentrionalem (quoniam nimirum exiſtit in ea ſphæræ medietate, quæ cõ
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prehenditur inter ♋, & </
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<
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">♑, per ♎, procedendo) ſemper decreuiſſe, meridio-
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nalem uero auctam fuiſſe. </
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<
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">In his omnibus porro exemplis perſpicue intueri
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licet, maiorem uarietatem declinationum accidiſſe prope æquinoctialem cir
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culum, quam apud tropicos. </
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<
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">Firmiſſima ergo demonſtratione collegerunt
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Aſtronomi, ſtellas fixas proprio motu ab occidente in orientem ferri, non
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quidem ſuper polos mundi, ſed ſuper alios diſtinctos polos; </
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<
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rent ſemper eandem & </
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<
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quod cum obſeruationibus Aſtronomorum pugnat.</
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<
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quoniam cognouerunt ſtellas fixas, licet varient, ut dictum eſt, decli-
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nationes ab æquinoctiali circulo, eandẽ tamen ſemper obtinere latitudinẽ,
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hoc eſt, eandem diſtantiã ab ecliptica linea, quæ per medium Zodiacum tran
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ſit, ut ex eorundem Aſtronomorũ obſeruationibus cõſtat. </
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<
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</
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<
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">ſtella, q̃ uocatur Atctophylax, ſeu Arcturus, deprehẽſa eſt deflectere ab ecli-
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ptica uerſus ſeptentrionẽ grad. </
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<
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<
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<
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<
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alijs ſtellis fixis omnibus obſeruatũ fuit: </
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<
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tur, eas moueri præciſe ſuper polos Zodiaci, & </
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<
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hoc enim poſito, deſcribent omnes ſtellæ ad motum ab occaſu in ortum cir
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culos parallelos ipſi Zodiaco, æqualiterq́ue ſemper ab eodem diſtabunt.</
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</
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<
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menta ad-
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uerſus mo
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tum ſtella-
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rum fixarũ
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ab occaſu
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in ortũ ſu-
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per polos
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Zodiaci, eo
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ruinque ſo
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lutio.</
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<
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poſſum hoc loco ſilentio præterire duo argumenta eruditiſſimi cu
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iuſdam uiri, ac nobiliſſimi, qui nõ multis ab hinc annis floruit, quibus demõ-
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ſtrare nititur in ſcriptis quibuſdã ad hanc rẽ confectis, quæ ego in cõgrega-
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tione, quæ iuſſu ſummi Pontiſicis de Calẽdarij correctione Romæ nuper ha
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bebatur, perlegi non indiligenter, fictitium omnino eſſe hunc motum ſtel-
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larum fixarum ab occaſu in ortum ſuperpolos Zodiaci, ficta etiam eſſe om-
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niailla phænomena, quibus Ptolemæus, alijq́ue Aſtronomi dictum motum
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in ſcholas introducete conati ſunt. </
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<
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tij faceſſere poſſent cuiuis parum in ſtellarum cognitione uerſato, quæ ſunt
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eiuſmodi. </
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<
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">Canopus, quæ ſtella lucidiſſima in temone argonauis exiſtit, in
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Europa non cernitur, quòd ſit nimis auſtralis; </
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<
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">Alexandriæ autem, vt re-
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fert Plinius lib. </
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<
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