Epitome Astronomiae Copernicanae

The Epitome Astronomiae Copernicanae is an astronomy book on the heliocentric system published by Johannes Kepler in the period 1618 to 1621.

The book contained in particular the first version in print of his third law of planetary motion.

[1] Divided into seven books, the Epitome covers much of Kepler's earlier thinking, as well as his later positions on physics, metaphysics and archetypes.

[3] Book V provided mathematics underpinning Kepler's views.

[2] Kepler wrote and published this work in parallel with his Harmonices Mundi (1619), the last Books V to VII appearing in 1621.