ASTR 102
Our Solar System and Others Spring 2018 Division III;
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What makes Earth different from all the other planets? What has NASA’s Curiosity on Mars found about Mars’s past running water and suitability for life? How has knowledge about Pluto been transformed by NASA’s 2015 flyby and the associated ground-based studies with which Williams College faculty and students participate? Will asteroids or comets collide with the Earth again? What is a solar eclipse like? What do we learn from the rare transits of Mercury and of Venus that Williams faculty and students have studied? Astronomy 102, a non-major, general introduction to the part of contemporary astronomy that comprises the study of the solar system, will provide answers to these questions and more. We will cover the historical development of humanity’s understanding of the solar system, examining contributions by Aristotle, Ptolemy, Copernicus, Galileo, Newton, Einstein, and others. We will discuss the discovery of over 4000 exoplanets around stars other than the Sun. The course gives special attention to exciting discoveries of the past few years by space probes and by the Hubble Space Telescope and the Kepler/K2/TESS missions. We regularly discuss the latest news briefs and developments in astronomy and relate them to the topics covered in the course. This course is independent of, and on the same level as Astronomy 101 (stars and stellar evolution) and 104 (galaxies and cosmology), and students who have taken those courses are welcome.
The Class: Type: lecture (three hours per week), observing sessions (scattered throughout the semester), afternoon labs (five times per semester), and a planetarium demonstration
Limit: 48
Expected: 24
Class#: 3198
Requirements/Evaluation: evaluation will be based on two hour tests, a final exam, an observing portfolio, and lab reports
Extra Info: not available for the fifth course option
Prerequisites: none
Department Notes: non-major course
Distributions: Division III;

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