L1GH09_SSoverview

L1GH09_SSoverview - A survey of the solar system Lecture...

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January 6, 2009 SS Overview, scale A survey of the solar system Lecture topics: SS overview, geometry, scale Text readings: Chapter 2
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January 6, 2009 SS Overview, scale Course Outline Part I: basic physical concepts; properties of the solar system; Part II: formation and evolution of the Solar System; using knowledge of SS to develop and test models Part III: searching for extrasolar planets comparing known extrasolar planets with our SS value for future studies/SS formation models etc. Text: Moons and Planets :W. Hartmann 5 th ed. UWACE Website: lecture notes, assignments, announcements etc.; check it at least twice/week
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January 6, 2009 SS Overview, scale Course “Basics” Evaluation Scheme for P275/W09 •Assignments – [email protected]% each ……………………………………….20% •Research Assignment ………………………………………………. .10% •Midterm ……………………………………………………………………….20% •Final Exam ……………………………………………………………………50% •Total – based on sum of work in all elements …….100% ± Schedule of due dates available on course website. ± Assignments will be posted ~7-10 days in advance of due date; solutions will be posted ~1 day after due date.
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January 6, 2009 SS Overview, scale SS Census – at present (Jan. 2009) Object type # total mass (kg) Mass (M Earth )a ( A U ) * stars 1 1.99x10 30 3.33x10 5 ~0.005 planets 8 2.67x10 27 446.5 ** 0.387-30.1 dwarf planets 3 3.05x10 22 0.0051 2.77-68 satellites 169 7.34x10 23 0.1229 …… asteroids 9x10 6 1.8x10 21 ** 0.000301 2.0-3.3 comets 10 13 10 24 -10 25 ?~ 1 0 - 1 0 2 ? 30-10 5 * orbital semimajor axis: a Earth =1AU ** M Jupiter >70% M planets *** # catalogued with some orbital data 25000
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January 6, 2009 SS Overview, scale Major SS Bodies: size comparison
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January 6, 2009 SS Overview, scale SS: orbit sizes of major planets
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January 6, 2009 SS Overview, scale beyond the planets are Pluto-like bodies at great distances; and beyond them comets orbits of inner planets Sedna’s orbit is far beyond Pluto’s and the main comet storehouse is even farther away
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This note was uploaded on 04/15/2009 for the course PHYS 275 taught by Professor Harris during the Winter '09 term at Waterloo.

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L1GH09_SSoverview - A survey of the solar system Lecture...

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