Astr 1050     Mon., Apr. 25, 2005

Chapter 16: Origin of the Solar System

Patterns in Motion

Spacing of Planets

Solar Nebula Model

Extra-Solar Planets

Characteristics of “Planets”

Slide 8

Patterns in Composition

Equilibrium Condensation Model

Growth of the Planetisimals

Evidence of Assembly Process?    Craters

Craters evident on almost all small “planets”

Clearing of the Nebula

Chapter 17: Terrestrial Planets

“Comparative Planetology”

Four Stages of Planetary Development

Timeline

Earth’s Interior

The Active Earth

Earth’s Atmosphere: Greenhouse Effect

The Moon and Mercury

Patterns in Geologic Activity

Formation of an impact crater

Examples of craters on the moon

Effects of late impacts

Moon: Giant Impact Hypothesis

Venus