By N.M. & O. NEUGEBAUER. SWERDLOW
When I first laid out the framework for A background of historical Mathe matical Astronomy, I meant to hold the dialogue all the way down to the final functions of Greek astronomical technique, i. e. Copernicus, Brahe, and Kepler. yet because the paintings proceeded, it grew to become obtrusive that this plan used to be a lot too bold, and so i made a decision to terminate my background with past due antiquity, good ahead of Islam. however, i didn't discard the operating statement that I had ready whilst learning De revolutionibus in its relation to the method of the Almagest. only in the near past, E. S. Kennedy and his collaborators had opened entry to the" Maragha college" (mainly Ibn ash-Shalir), revealing shut parallels to Copernicus's tactics. for that reason, it appeared worthwhile to make to be had a latest research of De revolutionibus, and therefore in 1975 I ready for ebook "Notes on Copernicus. " meanwhile, even if, Noel Swerdlow, additionally ranging from Greek astronomy, not just prolonged his paintings right into a deep research of De revolu tionibus, but additionally systematically investigated its resources and predecessors (Peurbach, Regiomontanus, and so forth. ). i used to be conscious of those stories via his courses in addition to from quite a few conversations at the topic on the Institute for complicated examine and at Brown college. It turned transparent to me that my very own investigations lay at too superficial a degree, and that i for this reason withdrew my manuscript and advised to Swerdlow that he adopt a thoroughgoing revision and amplification of my "Notes. " His attractiveness of my thought initiated the current publication.
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Additional info for Mathematical Astronomy in Copernicus’s De Revolutionibus: Part 2
B. 345 and pI. 16-17; text in Zinner (1937),56-58. 18 1. Life of Nicolaus Copernicus identical to those in De revolutionibus-and as a specimen of the accuracy of his work had computed an almanach, presumably in standard form giving daily positions and aspects for a full year (one would guess 1536). Wapowski says that the aspects were copied incompletely and with some errors, but can easily be corrected since the planetary positions were copied correctly. Unfortunately Herberstein did not act on Wapowski's request, Wapowski died on 21 November, scarcely a month after sending the letter and the almanach, and Copernicus's almanach has disappeared.
1 Aug. 1 1541 Apr. 20 Jun. 2 Aug. 28 by Oct. 1542 May Jun. before Jun. 20 ? by Oct. before Dec. 8 1543 before Mar. 21 May 24 July-Aug. Narratio prima published in Danzig. Writes to Osiander, apparently about opposition of philosophers and theologians. Petreius publicly addresses to Rheticus an invitation to communicate Copernicus's observations. Osiander writes to Copernicus and Rheticus suggesting that astronomical hypotheses need not be considered true. Writing, presumably revising De revolutionibus.
Indirectly, Copernicus probably had another publication in 1542, namely, the map of Prussia sent by Rheticus to Duke Albrecht, and this fairly recent discovery is worth a short digression. 53 In 1529 Bishop Ferber asked Alexander Scultetus to enlist Copernicus's help in preparing a map or description of Prussia. Exactly what the two canons did at the time is not known, but they must have carried out their assignment, for it is more than likely, and perhaps certain, that the map prepared by Rheticus, "with the help of some good gentlemen and friends, as far as was possible to me as a foreigner" (mit hulffe, etlicher gutter herren vnd frunde, so wei!