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2020-12-19 09:05:27
SCHEINER, Christoph.
Rosa ursina sive Sol ex admirando facularum & macularum suarum phoenomeno varius: necnon circa centrum suum et axem fixum ab occasu in ortum annua, circaq[ue] alium axem mobilem ab ortu in occasum conuersione quasi menstrua, super polos proprios, libris quatuor mobilis ostensus...
Bracciano: Andreas Phaeus, 1626-1630. First edition. EXTREMELY RARE LARGE AND THICK PAPER COPY. First edition, extremely rare large and thick paper copy, of the most lavishly illustrated astronomical work published in the first half of the seventeenth century, with many full-page illustrations of Scheiner's observations of the sun and of the optical instruments he had designed for the purpose. "For his masterpiece, Scheiner produced the first monograph on a heavenly body, the Sun. Even today it is still an impressive volume, with scores of engravings of sunspots and the various instruments needed for solar observations" (Jesuit Science in the Age of Galileo). "Scheiner's drawings in the Rosa Ursina are of almost modern quality, and there was little improvement in solar imaging until 1905" (Britannica). In this work "Scheiner agreed with Galileo that sunspots are on the Sun's surface or in its atmosphere, that they are often generated and perish there, and that the Sun is therefore not perfect. Scheiner further advocated a fluid heavens (against the Aristotelian solid spheres), and he pioneered new ways of representing the motions of spots across the Sun's face" (Galileo Project). Scheiner was one of the first to observe sunspots by telescope, in March 1611, and in 1612 he published his findings anonymously. This led to a famous controversy with Galileo, who claimed to have observed sunspots earlier, involving the exchange of several letters. Galileo then turned to other matters, notably the preparation of the Dialogo, but Scheiner continued his observations of sunspots, cul … [Click Below for Full Description]
Bookseller: SOPHIA RARE BOOKS [Denmark]

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