Rhea (/ ˈriː.ə /) is the second-largest moon of Saturn and the ninth-largest moon in the Solar System, with a surface area that is comparable to the area of Australia. It is the smallest body …

2024年11月3日 · Rhea is the second largest moon of Saturn, but with a mean radius of 475 miles (764 kilometers) it is less than a third the radius of Saturn’s largest moon, Titan. Rhea is a …

Rhea, major regular moon of Saturn and the planet’s second largest, after Titan. It was discovered in 1672 by the Italian-born French astronomer Gian Domenico Cassini and named for a Titan …

2024年1月22日 · Rhea is the second-largest moon of the gas giant planet Saturn. It was discovered by Italian astronomer Giovanni Cassini on Dec. 23, 1672. With a radius of 475 …

The Rhea moon has a mean radius of 764 km (475 miles), with the dimensions 1532.4 × 1525.6 × 1524.4 km. It ranks as the ninth-largest moon in the Solar System. It is 3.4 times smaller than …

2019年7月3日 · Rhea moon is the second-largest Saturnian satellite (only Titan is larger). It's made mostly of ice, with a small amount of rocky material inside. Among all the moons of the …

2016年8月1日 · Rhea (949 miles or 1,527 kilometers across) is Saturn’s second largest moon after Titan. Its ancient surface is one of the most heavily cratered of all of Saturn’s moons. …

2008年3月23日 · Rhea is the second largest moon of Saturn, behind Titan, and the largest without an atmosphere. It is composed mostly of water ice, but has a small rocky core. Rhea's rotation …

Rhea is the 2nd largest moon of planet Saturn. It is composed of 75% water ice and 25% rocky material, and has a thin oxygen atmosphere. It's surface has ice cliffs and dark areas made of …

Rhea is a small, cold, airless body that is very similar to sister moons Dione and Tethys. As with the other two moons, Rhea is tidally locked in phase with its parent — one side always faces …