Astronomy

Astronomy - ASTR 100 Review Outline Prof. Wilson 12/2/10...

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ASTR 100 Review Outline Prof. Wilson 12/2/10 Lecture 1 definition of a star, planet celestial sphere o geocentric model o diurnal motion angular separation o right ascension o declination diurnal motion/annual motion o motion along ecliptic equinoxes/solstices Lecture 2 moon phases o why do they occur/what are they? synodic/sidereal period geocentric model o Aristotle notion of Sun as center could occur, but rejected because of lack of stellar parallax observation what is stellar parallax? o Aristarchus ahead of his time with heliocentric model o Ptolemy epicycles special case for Venus/Mercury o Copernicus heliocentric model Lecture 3 geocentric/heliocentric models o Tycho Brahe very accurate observations agreed w/ Ptolemy because of lack of parallax obs. mentor of Johannes Kepler o Kepler ellipse laws of planetary motion o Galileo important discoveries w/ telescope how disproved Ptolemy Isaac Newton o laws of motion o conservation of angular momentum o law of universal gravitation combine with Kepler’s 3 rd law center of mass
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Lecture 4 tides o what causes? o why tides on both sides of Earth? o spring, neap tide oblateness/precession protons, electrons, electrical force o magnetism o light as electromagnetic radiation wave nature of light o relationship between wavelength/frequency particle nature of light o photons electromagnetic spectrum (particularly visible spectrum) atmospheric absorption of radiation Lecture 5 Light approaching an object o rayleigh scattering o absorption o temperature and molecular motion thermal equilibrium blackbody radiation o Wien’s law star color o Stefan-Boltzmann law o Earth’s emission Lecture 6 Planck’s law – quanta of energy, photon types of spectra o continuous spectrum o absorption spectrum (Fraunhofer lines) o emission spectrum o Kirchhoff’s rules Bohr Hydrogen Atom o nucleus, electron o postulates of Bohr atom o energy levels
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This note was uploaded on 02/06/2011 for the course ASTR 100Lxg at USC.

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Astronomy - ASTR 100 Review Outline Prof. Wilson 12/2/10...

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