This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Our sun is just one of 70 thousand million million million ← When stars form they are surrounded by a rotating disk of cosmic debris ← Gravity pulls debris together to form planets that revolve in a consistent direction around the star ← Sun= 99.8% of total mass of our solar system ← Terrestrial Planets (Mercury, Venus, Earth, Mars) • Composed of rocks • Divided into compositional layers o Crust- lighter elements o Mantle o Core- heavier elements ← Jovian Planets (Jupiter, Saturn, Uranus, Neptune) ← Large, gas giants ← Characterized my many moons and ring systems ← The Earth is tilted 23.5 degrees ← 23/01/2008 16:58:00 ← 23/01/2008 16:58:00 ←...
View Full Document
This note was uploaded on 04/02/2008 for the course NATS 101 taught by Professor Allister during the Spring '08 term at University of Arizona- Tucson.
- Spring '08