AS101 Study Guide - Ring System, Doppler Effect, Roche Limit
Document Summary
Different processes can provide the thermal energy that is needed for internal activity radioactive decay (e. g. earth) impacts/heat of formation (e. g. jupiter) tidal stressing (e. g. io: helium rain (e. g. saturn) Explained the observed planetary characteristics in the outer solar system. Understand how we can determine the composition of an extrasolar planet. Most of saturn"s rings are inside the roche limit. Particles cannot grow by gravitation (they just break apart again) Correction: clouds on jupiter recall that temperatures rise at lower depths in jupiter"s atmosphere ammonia, ammonium hydrosulfide, and water all condense at different depths layers of clouds. Uranus: no internal heat; neptune: yes this may be why u is so bland compared to n some clouds also form at lower altitudes, below methane haze. Uranus has an extreme axial tilt: 98 : early collision with a planetesimal seasons 21 years long.
