Rhea (moon) - Wikipedia
Rhea (/ ˈ r iː. 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 in the Solar System for which precise measurements have confirmed a shape consistent with hydrostatic equilibrium .
Rhea | 2nd Largest Moon of Saturn | Britannica
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 of Greek mythology.
Rhea: A guide to Saturn's 'rocky snowball' moon | Space
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 miles (764 kilometers), Rhea is...
Regarding Rhea - Science@NASA
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. Subtle albedo variations across the disk of Rhea hint at past geologic activity.
Rhea Moon: The Second Largest Moon of Saturn - The Planets
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 Titan, the biggest moon of Saturn, and 2.3 times smaller …
Rhea Moon: Saturn's Second-Largest Satellite - ThoughtCo
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 solar system, it's the ninth-largest, and if it weren't orbiting a …
Rhea: Saturn's Second Largest Moon - NASA
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 and orbit are locked together (just like Earth’s Moon) so that one side always faces Saturn.
Rhea (moon) - Simple English Wikipedia, the free encyclopedia
Rhea (/ ˈriːə /; [a] Ancient Greek: Ῥέᾱ) is Saturn 's second largest moon. It is made of ice and rock. Rhea may have a thin ring system with three narrow bands in a disk of solid particles. These would be the first rings seen around a moon. The discovery was announced in the journal Science on March 6, 2008.
Rhea: Ice Moon of Saturn | Images & Facts - GO ASTRONOMY
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 complex organic compounds. For a listing of all moons, see Moons of the Planets.
Rhea - NASA Planetary Data System
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 toward Saturn — as it completes its 4.5-Earth-day orbit around the planet.