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                  Titre : Opera omnia. Vol. 7 / edidit Ch. Frisch...

                  Auteur : Kepler, Johannes (1571-1630)

                  Éditeur : Heyder et Zimmer (Frankofurti a. M.)

                  Date d'édition : 1858-1871

                  Contributeur : Frisch, Christian (1807-1882). Éditeur scientifique

                  Sujet : Astronomie

                  Type : monographie imprimée

                  Langue : Latin

                  Format : 8 vol. : fig. et pl. ; gr. in-8

                  Format : application/pdf

                  Droits : domaine public

                  Identifiant : ark:/12148/bpt6k949604

                  Source : Université de Paris Sud 11, B2-120-7

                  Relation : Notice d'ensemble : http://catalogue.bnf.fr/ark:/12148/cb30678038g

                  Relation : http://catalogue.bnf.fr/ark:/12148/cb30678038g

                  Provenance : bnf.fr

                  Date de mise en ligne : 15/10/2007

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                  Title : Opera omnia. Vol. 7 / edidit Ch. Frisch...

                  Author : Kepler, Johannes (1571-1630)

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                  Tychonis Hyperaspistes

                  200

                  m suo azimutho, quod erat 74» 10', altitudo 19° 2', pro eo, quod Tycho in
                  observando deprehendit 19» 4'. Et sic computatarum differentia crit 17° 9',
                  quae observatarum inventa est 17" 6'. Justa quidem est haec Tychonis com-
                  putatio, repetii calculum, nec Claramoiitiiis in eu quod desideraret invenit,
                  quia ccnsendus est culculus quilibet ex sua hypothesi, quae hic est nulJitas
                  parallaxeos.

                  14. (Jum hoc pacto eincrgcret altitudinum obsorvatarum differentia 3 scru-
                  pulis minor, quam crat earum, quac ex observatis azimuthis et declinationibus
                  computabantur, exque hoc discrimine clucere videretur prima fronte fol. Ty-
                  chonis 137. aliqua parallaxis, sed perperam: ut igitur sciret Tycho, quanta
                  per tantulum discrimen iîeret parallaxis totalis, ccnsuit sibi altitudines iterato
                  coinputandas per positionem parallaxeos magnae et quae esset lunari acqualis,
                  tantae nimirum, quantam advcrsarius aliquis ponit ad minimum, ex ea (lunari
                  parallaxi totali) competebat primae altitudini modulus 03' 22", seemuïue
                  2' 30". Has parallaxes Tycho, sua quadam ratione usus, visis altituilini-
                  bus adchdit, ut jam sic in verarum (ex hac suppositione) altitudinum differuii-
                  tiarn redundaret differentia etiam utriiisquc paralinxeos (J' 8", quaeque obser-
                  vatarum erat 17° 6', ea esset jam verarum differentia lti° 57'.
                  15. Quod hic fecit Tycho observatis altitudinibus, censendus est fecisse
                  etiam us, quas pro visis computavit: tune enim (non minus atque prius) ex
                  differentia 17° 9' altitudinum, prius pro visis computatarum, jam fieret diffe-
                  rentia 17 0' tanquam verarum in hac parallaxeos positione altitudinum.
                  16. Hoc igitur dum fecit Tycho altitudinibus, in effectu etiam decli-
                  nationibus ipsis pro modulo suo fecit ex veris declinationibus, quas sine
                  consideratione parallaxeos ex hora 6. doduxerat, visas et parallacticas dedi-
                  nationes fecit, quia parallaxis altitudinis spargitur in declinationem et Asc
                  Rectam, ut Claramontius ipso libro primo fatetur. Vides igitur, quod Tycho
                  utrobique declinationem constituerit, prout positio quaevis requirebat, vel sine
                  parallaxi, vel cum aliqua in quantitate adversario placent!. Neutrobiqiic igitur
                  peccavit, et adhuc ab omnibus Scipioniscriminationibus manet intaetus. Multo
                  minus argumentum ipsum vel minimo digito tetigit adversarius, quia haec
                  pleraque nihil ad rhombum, ut dictum est.

                  17. Sed lubet hic pcrcontari, nunquid habes Claramonti, doctrinac pa-
                  rallacticae architecte, quod in hoc processu desideres ? Numquid is tibi sanus
                  videtur? Annues opinor. Qui tacet, eonseiitirc videtur. Nihil desideravisti in
                  cssentiahbus, ut sic dicain. Nec opinor cuiquam temere contradices, sic ra-
                  tiocinanti: differentia visarum altitudinum CI-, DF (Fig. 5) in datis duobus
                  azimuthis HAE, HAF constat ex differentia verarum in iisdom et differentia
                  parallaxium altitudinis cujusque. Krgo ablata differentia parallaxium a diffe-
                  rentia visarum, ut fecit Tycho, relinquitur differentia vcrarum aititudiuum in
                  duobus azimuthis.

                  18. Enim vero vigila Scipio insidiosissima est hic parallaxeos machi-
                  natio. Decepit ea omnes hactenus doctrinae paraJlacticac magistros, decepit
                  Tychonem (salva tamen qualitatc effectua), decepit et te Claramonti, ut non
                  videres paralogismum, quern quanti redimeres tibi cognitum fuisse, ut adver-
                  sanum delectum tanto pluribus vnJnoiibus oonficercs decepit denique et nie
                  ipsum ad hanc usque horam. Quam deceptionem dum pnngo, adesdum Cla-
                  ramonti, auctarium ecce suppedito tuis astronomicon libris, quos passim, ut t
                  et fol. 194. allegaa. Nego veram cssc ratiocinationem. Falsitatcm primum
                  opère deprehencli, causam erroris vix multa meditatione tandem sum assecutus


                  Source: gallica.bnf.fr / Université de Paris Sud 11, B2-120-7

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