Christoph Rothmann’s Discourse on the Comet of 1585: An by Miguel A Granada, Visit Amazon's Adam Mosley Page, search

By Miguel A Granada, Visit Amazon's Adam Mosley Page, search results, Learn about Author Central, Adam Mosley, , Professor of History and Philosophy of the Sciences Nicholas Jardine

Christoph Rothmann wrote a treatise at the comet of 1585 presently after it disappeared. although it used to be no longer published until eventually 1619, Rothman despatched a replica of his treatise in 1586 to Tycho Brahe, decisively influencing the latter's rejection of sturdy celestial spheres years later. In his treatise, Rothmann joined the removal of the cast celestial spheres to his proposal of air because the substance filling the cosmos. He established his argument at the absence of refraction and the celestial situation of the comet. The treatise additionally contained transparent statements reflecting Rothmann s adoption of Copernicanism. this primary serious variation of the treatise is observed by way of an English translation and an intensive statement. a few appendices with archival files illustrate the genesis of Rothmann s treatise."

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Additional resources for Christoph Rothmann’s Discourse on the Comet of 1585: An Edition and Translation with Accompanying Essays

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Astron. 11: Astronomia: in qua hypotheses Ptolemaicae ex hypothesibus Copernici corriguntur et supplentur: et inprimis intellectus et usus tabularum Prutenicarum declaratur et demonstratur. Again, this work figures in the Imperial Privilege as a work to be published: ‘IIII. Astronomical Elements in which the Ptolemaic hypotheses are corrected and completed according to the hypotheses of Copernicus, and are made known by the use and new computation of the Tychonic or Danish Tables’ [IIII Elementa Astronomica in quibus hypotheses Ptolomaicae ex hypothesibus Copernici corriguntur et supplentur, ipsoque usu et calculo novo Tabularum Tychonicarum seu Danicarum declarantur].

The reason for this resides, on the one hand, in the decidedly observational and empirical orientation of the Landgrave, always dismissive of purely theoretical astronomers removed from the work of observation,35 and on the other, in the confirmation of the profound divergence, sometimes of several degrees, between the positions of the stars conceded by the catalogues in use and their actual positions obtained by careful observation. Keeping in mind that the positions of planets (and of comets) were always established in relation to the backdrop of the stars, the necessary reform of astronomy required, in the eyes of the Landgrave, a restitution of the true positions of the stars.

Undoubtedly, the programme of the observatory suffered severely. Nonetheless, the Landgrave observed phenomena such as the nova of Cassiopeia and the comet of 1577. He recorded his observations of these phenomena and later, as we have noted, communicated them to Tycho following the establishment of their scholarly exchange in 1585. ’ Leopold (1986), 26. The Astronomicum caesareum is the only item from the Landgrave’s library that has survived to the present: it is Murhardsche Bibliothek, Kassel, 2° Ms.

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