Jupiter

Equatorial Diameter: 71,400 km (11x Rearth)
Mass: 1.9x1027 kg (320x Mearth)
Distance from Sun: 5.2 AU
Rotation period: 9.8 hours

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Jupiter has a very faint ring system, and an abundance (>60 and counting...) of moons, mostly small. The largest (Io, Europa, Ganymede, and Callisto) were discovered by Galileo, and can be seen through binoculars or a small telescope.