Delfino, Federico
,
De fluxu et refluxu aquae maris
,
1559
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æquinoctiali, meridionali uerſus occidentem accedens, ſe
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ctio eclipticæ octauæ ſphæræ mouetur per eclipticam octauæ
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ſphæræ tarde uerſus occidentem, quia æquatio octauæ ſphæ
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ræ ibi parum decreſcit, & ſtellæ fixæ uidentur moueri uerſus
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orientem tarde. </
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>Cum autem caput arietis octauæ ſphæræ eſt prope ſectione ſui
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parui circuli cum æquinoctiali, occidentali ex utroque latere
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eius, ſectio ecliptica octauæ ſphæræ mouetur per eclipticam
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octauæ ſphæræ uelociter uerſus occidentem. </
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>æquatio octa
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uæ ſphæræ ibi multum creſcit, uel multum decreſcit: & tunc
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ſtellæ fixæ uidentur moueri uerſus orientem uelociter. </
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<
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>cum au
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tem caput arietis octauæ ſphæræ appropinquat puncto ſui par
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ui circuli diſtinguentem quartas ab interſectionibus eius cum
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æquatore circuli, donec ueniat ad ipſum ſectio eclipticæ octa
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uæ ſphæræ, mouetur per eclipticam octauæ ſphæræ uerſus oc
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cidentem tarde, quia æquatio octauæ ſphæræ ibi parum cre
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ſcit, & tunc ſtellæ fixæ uidentur moueri tarde uerſus orien
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tem. </
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>idem fit per modum capitis libræ octauæ ſphæræ in cir
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cumferentia ſui parui circuli: quod fit per motum capitis a
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rietis libræ octauæ ſphæræ in circumferentia ſui parui circuli:
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quod fit per motum capitis arietis in circumferentia ſui, niſi,
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quòd motus eorum ſit in partibus ſuorum circulorum par
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uorum contrariis. </
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<
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>hinc inuenta eſt diuerſitas manifeſta in mo
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tu ipſarum ſtellarum fixarum. </
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>Ptolomæus enim loca ſtella
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rum fixarum inuenta ab ipſo tempore ſuo comparauit ad lo
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ca earum inuenta ab Hipparcho, & aliis, & reperit ſtellas fi
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xas non motas motu tardo, uidelicet in centum annis u
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no gradu, & hoc ideo fiat, quia tunc caput arietis octauæ
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ſphæræ erat ſeparatum à puncto ſui parui circuli diſtin
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guente quartas eius ab interſectionibus eius cum æquatore
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meridiano uerſus æquatorem accedens. </
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>poſteriores uero,
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dum magis accederat uerſus æquatorem, inuenerunt eas
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moueri in LXVI annis uno gradu: in anno autem domini
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MCDLX factum eſt caput arietis octauæ ſphæræ ſeptentriona
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lis ab æquatore, & diſtans à ſectione ſui parui circuli cum </
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