ERTH 1030 Lecture Notes - Liquid Hydrogen, Valles Marineris, Asteroid Belt
31 Jan 2013
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Document Summary
Solar system- sun eight planets and satellites, asteroids, comets, meteorites. Planes of seven planes lie within 3 degrees of suns equator, mercury is seven. Terrestrial= close to earth, jovial = mostly gas (huge!). 4. 6 billion years old these crystalize to make achondrites . Large compared to its parent planet, densty 3300 kg/m^3. Maria- dark regions, fairly smooth lowlands, originated from asteroid impacts and lava flooding the surface. Lunar highlands are bright, lots of impact craters, older than maria, made of anorthosite. Mercury- smallest planet, not atmosphere, smooth plains, revolves quickly rotates slowly. Similar to earth in size, density, location in the solar system. 80% of surface is plains, but mantled by volvanic flow. Low density impact craters, crust has been resurfaced, thosands of volcanic structures. Polar caps of water ice, covered by a thin layer of frozen carbon dioxide. Jupiter- 2. 5 times more massive than combined mass of the planets, satellites, and asteroids.
