- Additional Information
-
Additional Information
Short Description Enceladus is the sixth-largest moon of Saturn. It is approximately 500 kilometers in diameter, about a tenth of that of Saturn's largest moon, Titan. Enceladus is mostly covered by fresh, clean ice, reflecting almost all the sunlight that strikes it, making its surface temperature at noon reach only −198 °C. Despite its small size, Enceladus has a wide range of surface features, ranging from old, heavily cratered regions to young, tectonically deformed terrains that formed as recently as 100 million years ago. Enceladus - Wikipedia, the free encyclopedia Discovered by William Herschel Discovery date August 28, 1789 Type Moon AddInfo Saturn II Satellite of Saturn Orbit Prograde Rotation Synchronous Shape Equilibrium spheroid Geological activity Is active Hydrosphere Internal Apoapsis 06 239 066 km Periapsis 06 236 830 km Semi-major axis 06 237 948 km Distance from Sun 01 9.554 909 au /14 Eccentricity 0.004 7 Orbital period 1.370 218 day Orbital speed 02 12.63 km/s Inclination to the equator 000.019° Diameter/Size 504.2 ± 0.4 km | 0.1451 Moons Dimensions 513.2 × 502.8 × 496.6 km Mass 1020×1.080 22 kg | 0.002 Moons Density 01 1.609 g/cm3 Surface gravity 0.113 m/s2 | 0.0113 g Escape velocity 03 239 m/s Rotation period 1.370 218 day Axial tilt 0° Albedo Bond 0.99 Albedo geometric 1.375 Temperature min 02 33 K | −240 °C Temperature mean 02 75 K | −198 °C Temperature max 03 145 K | −128 °C Apparent magnitude 11.7 - Comments
-