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2014-07-15 13:53:05
[BRAHE, Tycho] MAGINI, Giovanni Antonio.
Tabulae novae iuxta Tychonis rationes elaboratae quibus directionum conficiendar[um] brevior quam unquam antehac a nemine ars traditur.Bologna: Sebastiano Bonomo, 1619.
Rare first edition of Magini's modified Tychonic cosmological system and the new astronomical tables he calculated based upon it. Magini (1555-1617) is today best known as the man who in 1588 received the chair in astronomy at Bologna, a post coveted by the younger Galileo. "Within the boundaries of his Ptolomaicism, Magini drew up complex theories, among them the multiplication of Ptolomaic spheres and orbits, and also performed some useful calculations. He was, in fact, much more skilled in calculation than in theory, and his ephemerides remained valid for a long time" (DSB).<br/><br/> Although Magini endorsed the unprecedented accuracy of Copernicus's calculation of celestial movements, he never accepted the Copernican system from a philosophical standpoint. In the preface to his <i>Novae coelestium orbium theoricae</i> he wrote: 'there is a general desire for some one who would systematize the motions of the heavenly bodies, in agreement with the latest observations, not according to the absurd hypotheses such as Copernicus contrived, but according to such as should seem less repugnant to truth.' <br/><br/> Magini was introduced to Tycho's theories after meeting Tycho's assistant Gellius Sascerides in Bologna in 1589, the same year in which <i>Novae coelestium</i> was published. Tycho sent autographed copies of his printed works for Gellius to present as gifts to Magini, and soon the two men were corresponding directly. This led Magini to develop a new cosmological system based upon Tycho's. "[Magini] later adopted the cosmological system of Brahe, with whom he establis … [Cliquez ci-dessous pour une description complète]
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