This image may not be used to state or imply ROE endorsement of any company or product Astronomia Nova. Title page of Johannes Kepler's Astronomia Nov

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This image may not be used to state or imply ROE endorsement of any company or product Astronomia Nova. Title page of Johannes Kepler's Astronomia Nova (New Astronomy, 1609). Kepler (1571-1630) worked as assistant to the Danish astronomer Tycho Brahe, whose 20-year archive of detailed observations he inherited when Brahe died in 1601. Failing to fit Brahe's data with the perfectly circular planetary orbits of Copernican theory, he deduced that the planets follow elliptical orbits around the Sun and move faster when close to the Sun. His universal laws of planetary motion were published in this book.

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Keywords: astronomia, book, copernican, cosmology, heliocentric, kepler, keplers, nova, page, research, surname, theory, title