Astr 1050    Wed., Dec. 10, 2003

Chapter 18: Worlds of the Outer Solar System

Jovian Planets

Ice+Rock Core    H+He “Atmosphere”

Jupiter as seen by Cassini

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

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

Saturn as seen by the Hubble Space Telescope

Titan

Rings are individual particles all orbiting separately

The Roche Limit
When can tides tear a moon apart?

Comparison of Rings

Comparison of Jovian Planets

Chapter 19:  Meteorites, Asteroids, Comets

Asteroids

The larger asteroids

Are Asteroids Primitive?

Phobos & Deimos:  Two “misplaced” asteroids?

Meteors vs. Meteorites

Large Meteor over the Tetons (1972)

The Leonids  2001

Meteor Showers and Comets

Comets:         Hale-Bopp in April 1997

Comet characteristics

Comet structure

Hale-Bopp clearly shows components

Where do comets come from?
Long period comets:  The Oort Cloud

Importance of comets

Chapter 16-19 Review

Chapter 16-19 Review

Chapter 16-19 Review

Chapter 16-19 Review

Chapter 16-19 Review

Chapter 16-19 Review

Exam #4

Exam #4