Weekly Notes: 2/22-2/26
Weekly Notes: 2/22-2/26 Astro 101
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This 2 page Class Notes was uploaded by Abigail Hills on Thursday February 25, 2016. The Class Notes belongs to Astro 101 at University of New Mexico taught by Dr. Matthews in Spring 2016. Since its upload, it has received 20 views. For similar materials see Astronomy 101 in Astronomy at University of New Mexico.
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Date Created: 02/25/16
Weekly Notes 2/26/2016 Professor Matthews The moon and Mercury are twins in appearance Mercury: -scarping: a shrinking phenomenon (like when a pug has too much skin) -surface is highly cratered -Caloris basin -has a small atmosphere due to it’s proximity to the sun Venus: -same escape velocity as earth -much ccloser to the sun -very thick atmosphere, little escape of gases -surface temperature: 730K (much hitter than mercury) - this is hot enough for metals to be molten -Has two continents -Reconstructed images by computers show the following features: -Top: Lava domes -Shield Volcanoes (look like roman shields- circular and slightly lifted) -formed by: slow upward movement of magma from the mantle -coronae -impact craters Mars: -Has north and south polar icecaps ( made primarily of frozen CO2) (water on mars is permanently frozen) -shifting dust cover makes surface of mars look like its changing -frequent dust storms, with high winds -Tharsis Bulge: -Size of North America, approx.. 10km in elevation -points with Minimal cratering indicates youngest part of surface -Valles Marineris: -Formed by crustal force -is a rift valley -Northern hemisphere of mars is younger because of cratering -Olympus Mons: -Volcano on mars the size of Colorado -Much of the northern hemisphere may have been an ocean
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