9-29 Meteors

9-29 Meteors - METEORS Definitions Meteor: the visible...

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METEORS Definitions Meteor: the visible streak of light (popularly called a shooting star or a falling star). The column of light is usually less than 1 meter in diameter but tens of kilometers long. Meteoroid: the solid object that creates the streak. They range in size from large fragments of asteroids or comets to extremely small micrometeoroids. Most visible meteors are created by meteoroids the size of a grain of sand. Meteorite: the surviving object if it reaches the ground. Fireball: a meteor brighter than the evening or morning star, Venus (technically, brighter than magnitude -4). Bolide: a fireball that explodes in a bright flash often visible fragmentation. Meteor Trail: the trail of ionized dust and gas that remains along the path of a meteor. Meteor Stream: a group of meteoroids in a given orbit as they travel around the sun. These meteoroids are usually the by-product of comets, so it is possible for the parent comet to be traveling in the same orbit--if it still exists. Meteor Shower:
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This document was uploaded on 09/16/2011.

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9-29 Meteors - METEORS Definitions Meteor: the visible...

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