AST 2002 Lecture 3: Exam 3 Outline Astronomy
Document Summary
Neptune & uranus: hydrogen compounds with metal & rock. Fast winds and large storms from the cloud layers. The great red spot (storm in jupiter) Medium & large: formed in the disks of gas that surrounded the jovian planets when they were young. Smaller moons: often captured as asteroids or comets: jupiter"s galilean moons geologically active. ~ io is the most volcanically active object in solar system. Tidal heating: occurs because io"s close orbit is made elliptical. Orbital resonance: two bodies that are both orbiting around one parent body are in a specific pattern. * europa & ganymede may have liquid water ocean under the crust, due to tidal heating. * callisto is the least geologically active (no orbital resonance or tidal heating) but it may also have a subsurface ocean: geological activity on titan & other moons. ~ medium & large moons: high level of past/present volcanism or tectonics.
