Enceladus

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Enceladus
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
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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
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
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