ASTR 1010 Study Guide - Final Guide: Tidal Locking, Orbital Resonance, Terrestrial Planet
7 May 2017
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September 21st-march 21st sun in southern part of sky for people near equator: imagine two solar systems, each with planets in circular orbits at 1 au. Planet bobo orbits twice as fast as planet thina. H and he are compressible, so more mass compression higher density smaller object stronger gravity. More compression: uranus and neptune accreted their cores more slowly than jupiter and. Saturn, causing them to get less nebular gas, causing them to be enriched by hydrogen compounds. Jp systems: many many moons, moons have different heat sources than tps (composition matters, jupiter moons: io and europa, saturn moons: enceladus and titan, Europa: weaker tidal heating than io because it is farther from jupiter (refer to rules for tidal heating, has magnetic field implies liquid salt water beneath icy crust, possibility for life. Triton: orbits backward, probably a captured moon, thin n2 atmosphere sublimation occurs.
