Huygens, Christiaan
,
Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica
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CHRISTIANUS HUGENIUS
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bet Saturnus, ſed & </
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<
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">omnes illas, quas obſervarunt Aſtrono-
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mi ab illo tempore a quo veras obſervare potuere, congruere
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perfecte cum hypotheſi annuli, & </
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<
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D
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Campani, Anni 1664 initio Julii, quam ipſe publici ju-
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ris fecit, in quo magna Ovalis diameter duplicatæ minori dia-
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metro æqualis eſt.</
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<
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">Quod autem ad rotundam Saturni Phaſin attinet, non poteſt
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@unda.</
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niſi parum admodum tempus hujus mutari, ex memorata mu-
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tata inclinatione ita ut D
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Hugenius adhuc dum phaſin hanc
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rotundam expectet anno 1671, in quo æſtate anſas amittere
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inchoabit, quas niſi poſt annum circiter recuperabit, juxta illa
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quæ tradidit in Syſtemate Saturni.</
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<
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">Excerpta ex literis D. Hugenii, Academiæ regiæ ſcien-
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tiarum ſocii, ad auctorem Diarii Eruditorum
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de figura Planetæ Saturni.</
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Saturno re-
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@ata.</
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quam hoc anno 1672 ex radiis ſolaribus emerſit, uti
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anno præcedenti prædixeram, & </
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ſint renata; </
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<
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">ultima mutatio non minus meretur, ut
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in Diariis veſtris notetur, quam quædam aliæ præcedentes, qua-
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rum ibidem mentionem feciſti.</
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<
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">Ultimum in conjunctione cum Sole fuit Planeta hic 12 Mar-
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tii præterito, in 22 gr. </
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<
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tas hujus loci Zodiaci ad noſtrum horizontem, quando oritur,
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in cauſa fuit quo minus tribus menſibus, aurora prohibende,
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videretur; </
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<
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Caſſini primum illum po-
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tuit obſervare, cum brachia Saturni jam facta eſſent adeo
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clara & </
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">ampla, ut inde colligi debuerit, jam à longo tem-
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pore fuiſſe inſtaurata; </
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@iſco Saturni.</
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parvam umbram ad latus ſeptentrionale brachiorum, </
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