Limited time offer 20% OFF StudySoup Subscription details

UA - PH/AY 101 - Class Notes - AY 101 - Sept 27 Lecture Notes

Created by: Savannah L Elite Notetaker

> > > > UA - PH/AY 101 - Class Notes - AY 101 - Sept 27 Lecture Notes

UA - PH/AY 101 - Class Notes - AY 101 - Sept 27 Lecture Notes

School: University of Alabama - Tuscaloosa
Department: Astronomy
Course: AY 101 - Intro to Astronomy - Jeremy Bailin
Professor: Jeremy Bailin
Term: Spring 2015
Tags:
Name: AY 101 - Sept 27 Lecture Notes
Description: Tuesday, September 27, 2016 Lecture Notes
Uploaded: 09/28/2016
This preview shows page 1 of a 2 page document. to view the rest of the content
background image AY 101 – LECTURE SEPT 27  Terrestrial Planets:    Mercury 
  Mars 
  Earth 
  Venus 
o  “Terra” = earth, made of dense solids (rock, metal) 
o  Differentiated – dense material sunk to center 
How Can We Tell Internal Structures?    Vibrations from earthquakes travel through Earth’s interior 
  Some types of waves (like soundwaves) can travel through both liquid and solid 
  Some (transverse) can only travel through solid 
    Internal heat rises faster than cooling rate for larger planets; big planets cool and solidify slower    Important Physical Processes    Heat from the Sun  o  The closer a planet is to the sun, the more energy it receives (hotter surface) 
o  In the absence of other effects, earth would be too cold for liquid water 
  Greenhouse Gases  o  Heat gets trapped, raising temperature 
o  Most important gases – water vapor, CO2, methane 
Geological Activity    If the outside of a planet is molten:  o  Tectonics (renews surface) 
o  Magnetic Field (protects atmosphere) 
o  Volcanoes (outgas H20, C02, N2) 
Earth as an Example    Large, inside is still molten hot  o  Volcanoes: provided N2, CO2, H2O; greenhouse effect 
o  Tectonics: erase impact craters 
o  Magnetic Field: protects atmosphere 
  Moderate distance from sun  o  Liquid water temperatures (with greenhouse effect) 
o  Most CO2 dissolved into oceans, now in seafloor rock 
  Life  o  O2 in atmosphere 

This is the end of the preview. Please to view the rest of the content
Join more than 18,000+ college students at University of Alabama - Tuscaloosa who use StudySoup to get ahead
2 Pages 17 Views 13 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
Join more than 18,000+ college students at University of Alabama - Tuscaloosa who use StudySoup to get ahead
School: University of Alabama - Tuscaloosa
Department: Astronomy
Course: AY 101 - Intro to Astronomy - Jeremy Bailin
Professor: Jeremy Bailin
Term: Spring 2015
Tags:
Name: AY 101 - Sept 27 Lecture Notes
Description: Tuesday, September 27, 2016 Lecture Notes
Uploaded: 09/28/2016
2 Pages 17 Views 13 Unlocks
  • Better Grades Guarantee
  • 24/7 Homework help
  • Notes, Study Guides, Flashcards + More!
Join StudySoup for FREE
Get Full Access to UA - AY 101 - Class Notes - Week 5
Join with Email
Already have an account? Login here
×
Log in to StudySoup
Get Full Access to UA - AY 101 - Class Notes - Week 5

Forgot password? Reset password here

Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here