Astronomy Week 7 Notes
Astronomy Week 7 Notes ASTR 1000-002
Popular in The Solar System (Lecture)
Popular in Astronomy and Physics
This 2 page Class Notes was uploaded by Jenna Notetaker on Thursday October 6, 2016. The Class Notes belongs to ASTR 1000-002 at University of Colorado at Boulder taught by Charles Danforth in Fall 2016. Since its upload, it has received 4 views. For similar materials see The Solar System (Lecture) in Astronomy and Physics at University of Colorado at Boulder.
Reviews for Astronomy Week 7 Notes
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 10/06/16
Astronomy Week 7 From a gas to larger solid objects is how a solar system forms Growth of planets Condensation Accretion Differentiation Absolute zero the lowest possible temperature, particles have no kinetic energy The other (2% of the universe): hydrogen compounds (ices) 1.4 %, rock 0.4%, metal 0.2% Low temperature and higher density materials start to condense (called planet seeds when dealing with planets) Frost line when water can condense Accretion small objects gather together to make smaller objects Densities 3 Water ice= 0.94 g/cm Water liquids= 1 g/cm 3 3 Rock= 2.7 to 3.7 g/cm Iron= 7.8 g/cm 3 Density= mass/volume Differentiation denser material sinks while lighter material floats Terrestrial planets: crust, mantel, and core Outside the frost line there is also ice Planets outside the frost line have three times more “stuff” to work with so they are able to get much bigger There is lots of gas and planetesimals left after the planets begun to form The young star emits solar winds and push the gas out of the nebula which stops the gas capture of the planets Small bodies moved into the Oort cloud, asteroid belt, and the Kuiper belt Rocky planetesimals= asteroids Icey planetesimals= comets Exceptions to the rules: Venus rotates backwards, Uranus and Pluto rotate sideways, the early solar system was a very chaotic and dangerous place Planets may have captured asteroids to make moons for themselves Comets brought water to Earth
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'