class34a - Wednesday, Nov. 19 Syllabus, class notes, and...

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Wednesday, Nov. 19 Syllabus, class notes, and homeworks are at: www.as.utexas.edu courses AST 301, Lacy Reading for this week: chapter 16 We’ll go back to the old help session time and place this week: Wednesday at 5:00 in GRG 424
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Topics for this week What evidence do we have that planets exist orbiting around other stars? Describe and compare briefly the compositions and orbits of the terrestrial and Jovian planets, asteroids, and comets. Describe the nebular theory of the formation of the solar system. How does the nebular theory explain the differences in composition among the planets?
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Detection of Extrasolar Planets How could we find planets orbiting around other stars? See them in visible light pictures See them in infrared pictures Measure the spectra of star+planet Observe them blocking the star’s light Observe the effects of their gravities on the star causing the position of the star to change causing the velocity of the star to change
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Orbits of exoplanets Most of the planets we have found around other stars are
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This note was uploaded on 07/13/2010 for the course AST 301 taught by Professor Harvey during the Fall '07 term at University of Texas at Austin.

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class34a - Wednesday, Nov. 19 Syllabus, class notes, and...

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