Epitome Astronomiae Copernicanae

Kepler's Figure 'M' from the Epitome, showing the world as belonging to just one of any number of similar stars
Diagram of the phases of Venus as viewed by an observer on Earth
Epitome astronomiae copernicanae (1618)

The Epitome Astronomiae Copernicanae was an astronomy book on the heliocentric system published by Johannes Kepler in the period 1618 to 1621. The first volume (books I–III) was printed in 1618, the second (book IV) in 1620, and the third (books V–VII) in 1621.