A long-time avid amateur astronomer living in Massachusetts, Chaple profiles the Jovian planets, that is the gas giants and their many moons, but not the former planet Pluto. His topics include the birth of the Jovian planets, Jupiter''s moons as a solar system in miniature, Saturn as the crown jewel of the Solar System (the full sized one), the tipped-over world
Uranus, Neptune the planet discovered on paper, Jovian planets beyond our solar system, and Voyager 2''s grand tour.