Unit 3 Notes.pdf - Unit 3 Notes Rings, Moons, and Pluto ● ●...

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Unit 3 NotesRings, Moons, and PlutoJupiter has 4 big moons that orbit in the same direction as the planetSaturn has 1 big moon named Titan is the only moon that has an atmosphereThe Galilean SatellitesJupiter’s 4 big moonsThe innermost one is very yellow → it’s the most volancially active body in the solarsystemThe yellow comes from sulfur compoundsThe outermost moons are more icyJupiter’s moon IOColors are caused by sulfur and its compoundsThe dark spots are volcanoesThe volcanoes are active today → their lava is rich in sulfur and sulfurcompoundsSuperhot volcanoesJupiter’s moon EuropaEntirely covered in water iceThe ice layer is several kilometers thickHas salt water ocean below its ice surfaceThe layer of salt water (not ice) is inferred and magnetic properties of EuropaAs free-flowing water is a requirement for life, it has been suggested that lifemight exist on EuropaTidal heatingThe tidal bulges squeezes the moon into a small shape → tidally locking themoon into synchronizationThe moons are on eccentric orbits due to the large gravitational pull ofthe other moonsVarying distortion causes friction inside the moonsThe friction heats the moonsIO is heated the most because it has the shortest orbital period and isclosest to JupiterIO is heated so much that it has continuous volcanic activityIt’s surface is replaced every few million years. It has becomeeven more differentiated than the earth, and sulfur has floated toits surface
PlutoFound in the Kuiper BeltSurface consists of nitrogen ice mixed with methane ice → water ice is included in thisPluto’s surface is not old → most likely, the ice moves around and creates impact cratersPluto goes inside Neptune’s orbit but will never hit it → they are in an orbital resonancethat protects them from ever hitting each otherPluto then swings back out (much further from the sun) and the gas freezes,getting rid of the atmosphere

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Term
Fall
Professor
ROBINSON
Tags
Solar System, Exam 3 Notes, Planet

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