Earth Sciences 1086F/G Lecture Notes - Lecture 12: Diogenite, Kaaba, Orbital Period
3 Jul 2020
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Kaaba stone: wanika tribe worshipped, when enemies burned they"re village concluded the rock wasn"t good and sold it to missionaries. Asteroids: ceres was largest drawf in asteroid belt. Original idea was these were left over material of planets due to collision (reject) Its actually material that never assembled into planet, didn"t cause of jupiters force. Asteroid: rocky object 100 to several hundred km in diameter. Meteoroids: rock object measure few millimetres to 100m in diameter. Meteor: visual streak of light associated with passage of small meteoroid through earth"s atmosphere, heat energy producing light is result of friction b/w object and molecules of gas in atmosphere. Fireball: light associated w/large meteoroid/asteroid as interacts with atmosphere. Meteorite: fragment of meteoroid/asteroid that lands on earth. Primordial objects left from formation of solar system last remains of planetesimals that built planets 4. 57 billion yrs ago: photographs reveal them to be small complex worlds with irregular shapes and heavily cratered surfaces.
