Because the book was published in 1609, it is in the . You can legally download the full Latin original or English translations from several reputable academic archives. Here are the best sources:
Before Kepler, the universe was envisioned through the lens of Aristotelian and Ptolemaic systems—perfectly circular paths and complex epicycles. In Astronomia Nova , Kepler documented his ten-year struggle to map the orbit of Mars, leading to two of his three famous laws: astronomia nova pdf