Fabri, Honoré
,
Dialogi physici in quibus de motu terrae disputatur
,
1665
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que receſſus ſub Axe HV, applicata qualibet baſi, quæ in partes quaſ
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cunque diviſa repræſentat tempus, tum acceſſus, tum receſſus. </
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Antim.
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<
s
id
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s.000254
"> Optimè; vnum tamen obſerva, in acceſſu ita dividi tempus,
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quod repræſentatur per lineam AZ, vt incipiat ab A & terminetur in Z;
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in receſſu verò incipiat à Z, & deſinat in A: idem dico de acceſſu & re
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ceſſu Apogæi. </
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<
s
id
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s.000255
">Iam verò ad id, quod de motu Apogæi quæſiveras reſpon
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deo, periodum inclinationis, ſeu motus Apogæi, æqualem non eſſe perio
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do alterius inclinationis; ita vt, Sol citiùs redeat ad Tropicum Cancri,
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vnde diſceſſerat, abſoluto totius Eclipticæ motu, quàm ad Apogæum,
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quod tantùm attingit paulo pòſt: igitur interea Sol tantulùm promove
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tur in Ecliptica, hinc Apogæum videtur moveri ſecundùm ſeriem Signo
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rum, ſed adeò lentè, vt vix ſingulis annis 1. minutum conficiat; & hic
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motus eſt tantùm apparens. </
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<
s
id
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s.000256
">Hæc dixi ad reducendum ad calculos Ano
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maliæ motum; nam re ipſa AD habet minorem proportionem ad AH.
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ſeu BD ad CH, quàm tempus, quo Sol Apogæus in Cancro decurrit
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arcum Eclipticæ æſtivum, à principio ſcilicet Cancri ad Libram, ad tem
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pus quo arcum autumnalem deſcribit, ſunt enim ſpiræ paulò laxiores in
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hoc arcu; ac proinde pauciores; igitur pauciores dies; quod ideò fit, vt
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vna ſpira diurna Solis ſit ferè æqualis alteri diurnæ; ſic enim ſupplet natu
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ra æqualitatem motuum; quod ſanè multis aliis exemplis comprobare
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poſſem, ſi fortè ita iuberes. </
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<
s
id
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s.000257
">Ex his reliqua, ni fallor, quæ ad Solare
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noſtrum ſyſtema pertinent, facilè intelliges. </
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Auguſtin.
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type
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<
s
id
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s.000259
"> Ita eſt: quare ad prima illa poſtulata de Marte redeo; vnum,
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ni fallor, ſupererat, cur ſcilicet Mars à coniunctione, vel Apogæo
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ad Quadraturam, plus temporis ponat, quàm à Quadratura, ſcilicet reſ
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pectu Solis, ad Oppoſitionem, vel Perigæum. </
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Antimus.
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type
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</
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<
s
id
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s.000261
"> Miror à te, qui adeò perſpicax es, non videri; cùm enim
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Mars ab Apogæo & Coniunctione ad mediocrem diſtantiam orbes ſuos
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tardiùs conficiat; haud dubiè minoribus intervallis Solem poſt ſe relin
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quit, quàm dum à mediocri diſtantia tendit ad Perigæum; quia orbes
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ſuos citiùs decurrit; igitur maioribus intervallis Solem poſt ſe relinquit;
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igitur cum æqualibus temporibus, ab Apogæo ad mediocrem diſtantiam,
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& ab hac ad Perigæum perveniat, & cum eo tempore, quo ab Apogæo
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pervenit ad mediocrem diſtantiam, minore arcu Solem poſt ſe relinquat,
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maiore verò æquali tempore, quo à mediocri diſtantia pervenit ad Pe
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rigæum; inde ſequitur, vt arcus hinc inde ſint æquales, provt reverà
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æquales apparent, à Coniunctione ad Quadraturam, & ab hac ad Oppoſi
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tionem, aſſumenda eſſe inæqualia temporum intervalla, maius ſcilicet
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ab Apogæo ad Quadraturam, minus verò ab hac ad Perigæum. </
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Auguſtin.
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Hæc adeò facilia Sunt, vt nimia facilitas non nihil de pre
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tio detrahere videatur; iam verò mihi facilè perſuadeo, reliqua omnia,
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quæ ad alias paſſiones ſuperiorum Planetarum pertinent, pari facilitate ex
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iactis à te principiis explicari
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poſſe. </
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Antimus.
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<
s
id
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"> Ita eſt prorſus; nam res eodem modo explicatur in Iove &
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Saturno; niſi quod cùm Iupiter maioribus intervallis Solem poſt ſe relin-</
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