Abstract

Brahe creía que su teoría sobre los cometas refutaba el copernicanismo. Analizamos el argumento y mostramos que ningún sistema existente podía acomodarlos. Tras el decreto anticopernicano de 1616, muchos jesuitas que rechazaban a Ptolomeo e incluso coqueteaban con Copérnico se vieron obligados a abrazar el sistema de Brahe. La discusión de los cometas de 1618 permitía a los jesuitas reforzar a Brahe en un momento en que Galileo no podía defender el copernicanismo. La disputa de los cometas se examina bajo esta luz y se conjetura la orientación pro-Brahe de las censuras del Diálogo de Galileo.It was Brahe’s belief that the motion of comets refuted Copernicus’ system and complied with his own. His argument is analyzed to show that neither could explain their motion. After the anti-copernican decree of1616 quite a few Jesuits that rejected Ptolemy and even courted Copernicus were bound to accept Brahe’s system. The appearance of comets in 1618 allowed the Jesuits to describe them and support Brahe, while Galileo could not treat them in copernican terms. So he crossed them off. The comets war is seen under this light and the pro-Brahe bias in the censorship of the Dialogo is strongly conjectured.