Astr 1050     Fri., Apr. 30, 2004

Chapter 18: Worlds of the Outer Solar System

Jovian Planets

Ice+Rock Core    H+He “Atmosphere”

Details of the atmosphere

Jupiter as seen by Cassini

Winds on Jupiter

Winds near the Great Red Spot

Hurricanes exist because
Low Pressure trying to turn winds to the left
almost balance
Coriolis Force trying to turn winds to the right.

Jupiter has multiple cloud decks as air rises in low pressure “zones”

Magnetic fields and trapped particles

Aurora on Jupiter

Comparison of Jovian Planets

Effects of T (and E) on Atmospheres

Implications of M, r for nebula

Saturn as seen by the Hubble Space Telescope

The Roche Limit
When can tides tear a moon apart?

Rings are individual particles all orbiting separately

Comparison of Rings

Jupiter as a miniature solar system

Io, Europa break rules about activity

Tidal heating explains activity

Possible H2O ocean on Europa

Callisto not active

Comparison of Satellites

Titan

Triton