Orbit diameter density similar to jupiter in

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Unformatted text preview: : Saturn Saturn ! Orbit: Diameter: Density: ! Similar to Jupiter in composition ! ! • • ! 75% hydrogen, 25% helium Inner core of rocky material, outer core of liquid metallic hydrogen Rings • • ! 9.54 AU 120,536 km 0.70 g/cc Comprised of dust and ice, spread thinly All the Jovian satellites have rings, though most are faint in comparison Satellites • • Like Jupiter, possesses a host of satellites Largest is Titan • Only moon in the solar system with an atmosphere • 1.5 atm pressure, mostly N2 with some Ar, methane pressure, Ar • Surface of water ice continents, oceans of methane and hydrocarbons (?) Titan Titan ! ! ! ! ! Diameter: 5,150 km Density: 1.88 g/cc Surface temperature: ~90 K Atmosphere: 98% N2, 2% CH4, surface pressure = 1.5 atm Similar to Ganymede, Callisto in bulk composition • • ! Core of silicate rock Mantle and crust of water ice, surface deposits of hydrocarbons (methane) Hydrologic cycle of methane • • • Surface methane lakes, rivers, atmospheric precipitation Results in erosion of surface crustal (water ice) features, fluvial sedimentation Other hydrocarbons also found in atmosphere: • ethane, diacetylene, methylacetylene, cyanoacetylene, acetylene, propane • Also: Ar, CO2, CO, (CN)2 [cyanogen], HCN [hydrogen cyanide] and He Titan Titan Lakes on Titan: Cassini orbiter image 400 km long,...
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