Limited time offer 20% OFF StudySoup Subscription details

UA - PH/AY 101 - Class Notes - Week 8

Created by: Abby Kunis Elite Notetaker

UA - PH/AY 101 - Class Notes - Week 8

This preview shows page 1 of a 2 page document. to view the rest of the content
background image Ay101 lecture notes  10/4/2016   Asteroid and Kuiper Belts: leftovers 
- mainly rock/metal like terrestrial worlds  - spaced far apart (70 km between neighbors) Pluto and Charon: - new horizons spacecraft flew past July, data from flyby slowly coming in 
(will be for years) 
- Universal expectation: too small, too little tidal forces to keep insides 
molten. Ought to be dead worlds covered in craters.
Comets: - sometimes outer solar system objects get perturbed into orbits that 
approach the sun 
- when we measure their orbits, most go out to either… 50-100 AU (Kuiper 
belt) or about 100,000 AU (oort cloud) 
- tails formed by gases that sublimate off the nucleus, small dirt grains that 
come out. 
- pushed away from the sun by solar wind.  Meteor showers: - if earth passes through the former path of a comet, the dirt grains burn 
up in our atmosphere. 
- Best meteor showers: August 12th (Persieds; comet swift-tuttle), 
November 17th (Leonids; comet tempel-tuttle)
Formation of the Solar System:
~Key observations:
terrestrial vs. jovian planets 
-flat plane with mostly circular orbits 
-most orbits and rotation are in the same direction 
Protosolar Nebula: - collapsing very- slowly-spinning gas cloud           ~turns gravitational potential energy into thermal energy (Heats Up)
          ~ conserves angular momentum as it gets smaller (spins up and                  

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
School: University of Alabama - Tuscaloosa
Department: Astronomy
Course: AY 101 - Intro to Astronomy - Jeremy Bailin
Professor: Jeremy Bailin
Term: Spring 2015
Name: ay101 lecture notes 10/4
Description: todays lecture notes
Uploaded: 10/04/2016
2 Pages 14 Views 11 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 8
Join with Email
Already have an account? Login here
Log in to StudySoup
Get Full Access to UA - AY 101 - Class Notes - Week 8

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

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