Astronomy notes exam 3.pdf - Astronomy Running notes for...

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Astronomy Running notes for test 3October 14, 2019 - rings, moons, and plutoI.MoonsA.Kuiper belt: a huge belt of small objects outside of neptune1.Captured objects are tiny moons that have very eccentric orbits around aplanetB.Jupiter has the most regular moons since they are so large1.Io, Europa, Ganymede, CalistoC.Titan, one of saturn’s moons, is so large that it has an atmosphere so we cantsee any surface featuresII.The galilean satellites (jupiter)A.All look very different, very icyB.Io1.The most volcanically active object in the solar system2.Dark spots on the surface are volcanoes with very sulfur rich lava, givingthe surface a bright yellow color3.Very few surface features because the surface is constantly getting pavedoverC. Europa1.Basically an ice ball on the surface2.Ice formations have interesting patterns that looks like the ice at the northpolea)Big blocks froze in place while smaller pieces solidified around itb)Must be something heating the moon to make the ice melt andmove but the sun is too far awayc)Evidence that there may be liquid water inside its icy crust3.Ice surface - layer of salt water - outer core - icy coreD. Ganymede1.Largest moon in the solar system2.Darker places are older, more heavily cratered regions while the lighterareas are sites of geologically recent impacts3.Surface has grooves and ridges because of tectonic forcesE.Callisto1.Very old with little surface activity / features2.Mostly iceIII.Jupiter’s gravity raises tides in its moonsA.Tidal heating: the process that heats the interior of the satellites1.Friction heats the moons and melts some of the ice2.Io has the shortest orbital period and its closest to Jupiter so its heatedthe most, causing it to be so volcanically active3.Callisto is the farthest away so it’s the coldestB.Tidal bulges squeeze the moons into a football shape
C.All of the moons are very large so they pull at each other, giving them veryeccentric orbits1.Ganymede 4:12.Europa 2:13.Io 1:14.

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Term
Fall
Professor
ROBINSON
Tags
Solar System, Notes For Exam 3, Planet, Neptune, Pluto, Comet

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