Astronomia nova by Johannes Kepler
= Astronomia nova by Johannes Kepler
{c}
{tag=Work by Johannes Kepler}
{title2=1609}
Digitized primary book: https://library.si.edu/digital-library/book/astronomianovaa00kepl
Kepler edition project: https://kepler.badw.de/en/on-johannes-kepler/the-planetary-laws.html
Cited for the ellipse and equal-area laws developed from the Mars problem. The later third planetary law is not attributed to this book.