Epitome astronomiae copernicanae, usitatâ formâ quaestionum & responsionum conscripta, inq; VII. libros digesta ..
Epitome astronomiae copernicanae is a 1618 astronomy textbook by Johannes Kepler, printed at Lentijs ad Danubium, that sets out Copernican astronomy in question-and-answer form for students of the subject. The four pictures are small printed diagrams of circles with radiating lines, arcs and letter labels, showing celestial sphere geometry and planetary positions.
