La prima parte dele theoriche o' vero speculationi dei pianeti, di m. Alessandro Piccolomini
A 1558 Italian astronomy treatise by Alessandro Piccolomini, the first part of his theoretical speculations on the planets, written for students of planetary theory. Its pictures are geometric diagrams of eccentric and epicyclic orbits drawn with compass circles, letters at intersections, and radiating lines from a central point, offering a designer clean, labelled circular schematics and ornate zodiac-ring borders.
