Final answer:
Johannes Kepler published 'The Epitome of Copernican Astronomy' in the early 1600's, furthering our understanding of planetary motion.
Step-by-step explanation:
The man who published 'The Epitome of Copernican Astronomy' in the early 1600's was Johannes Kepler. Kepler was a German mathematician and astronomer, and his work with Tycho Brahe laid the foundation for our understanding of planetary motion. Kepler's laws of planetary motion explained how the planets move in a heliocentric model of the solar system, which had been proposed by Nicolaus Copernicus.