April 7, 2008

April 7 2008 - April 7 2008 o Review sessions o Wednesday 7:00 8:30 Duane G125 o Thursday 8:00 9:30 Duane G125 o Read for astronomy in the news

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April 7, 2008 o Review sessions o Wednesday 7:00 - 8:30 Duane G125 o Thursday 8:00 – 9:30 Duane G125 o Read for astronomy in the news presentation next time o CLICKER QUESTION: what happened to most of the original CO 2 in earth’s atmosphere? o It is trapped in rocks o Earth’s Atmospheric structure o Stratosphere Layer above the troposphere Temperature rises with altitude in lower part, drops with altitude in upper part The switch in the middle is because there isn’t enough gas density Warmed by the absorption of UV sunlight by the ozone Not all the UV rays are absorbed, some UV makes it to the surface o Thermosphere Layer about 100 km altitude Temperature rises with altitude X-rays from the sun heat and ionize gases o Exosphere Highest layer in which atmosphere gradually fades into space There is no definite line where there is no longer anymore atmosphere This is why the space station and shuttles are dragging through the atmosphere so it does fall a little
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This note was uploaded on 04/07/2008 for the course ASTR 1110 taught by Professor Hornstein during the Spring '08 term at Colorado.

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April 7 2008 - April 7 2008 o Review sessions o Wednesday 7:00 8:30 Duane G125 o Thursday 8:00 9:30 Duane G125 o Read for astronomy in the news

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