ASTR 2310 Chapter 8 Overview of Solar System

ASTR 2310: Chapter 8 Overview of Solar System – – Two types of planets Physical properties of planets • – – Temperatures, densities, albedos, etc. Retention of atmosphere Solar System Formation • • Protoplanetary disks, condensation, etc. Post formation processes (catering, volcanoes)

ASTR 2310: Chapter 8 What is wrong with this picture? It's from NASA. . .

ASTR 2310: Chapter 8 Characteristics of the Planet Types – Mass (10 x) – Composition Terrestrial Jovian Low (upto Earth) High Rocky/Metal High density Gaseous Low density – Rotation 18 hr – – Satellites Few Many Orbital radius < 2 AU >5 AU slow – day+ fast <

ASTR 2310: Chapter 8 Planet Masses – How? Planet Sizes – How? Planet Densities – How? Planet Temperature more involved. . . – I'll do it on the board, also see text and wiki for blackbodies as advertised. .

ASTR 2310: Chapter 8 Albedos and graph presentation lesson: – http: //www. numberpix. com/2006/04/reflections_on_the_planets_1. ht ml – Never too early to learn this stuff!

ASTR 2310: Chapter 8

ASTR 2310: Chapter 8 Spectrum of Mars:

ASTR 2310: Chapter 8 Planetary escape velocity, gas temperature, and gasses

ASTR 2310: Chapter 8 Protoplanetary Disks:

ASTR 2310: Chapter 8 Cratering and Volcanic Flooding – – Mercury is very much like the moon – Nice website from Guy Worthey* at WSU: – http: //astro. wsu. edu/worthey/astro/html/lecmercvenus. html – *A Wyoming graduate Venus has active volcanoes, surface hidden by clouds but not radar