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Unformatted text preview: o Oort cloud o Exceptions Rotations • Venus o Backwards • Uranus o On its side Orbits • Triton o Backwards Moons • Earth’s moon o Big (compared to earth) • Most small moons o Screwy shapes and orbits Four challenges for a solar formation theory o Orderly motions o Two kinds of planets o Two kinds of small bodies o Exceptions to the rules Formation: sources of evidence o Star forming regions Chemistry of material o Our solar system o Other solar systems Similarities and differences Collapse of the solar nebula o Formation of the sun o Theories of star formation are based on observing millions of stars of different ages o Start with a nebula of gas and dust Nebula = noun = “cloud” (plural = nebulae) Nebular = adjective = “cloud like” The astronomer’s periodic table o Mostly H and more Hydrogen o Some heliun o Tiny amount of other elements o...
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This note was uploaded on 04/07/2008 for the course ASTR 1110 taught by Professor Hornstein during the Spring '08 term at Colorado.
- Spring '08