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impact event comparison table

Subject	has location	has material	is a kind of	has volume	has temperature	has velocity	produce	has momentum	has synonym	has product	has extent	has mass	has definition	has angular momentum	has average interval time	has has average interval time
asteroid impact			impact event				a crater		world point
comet impact			impact event				a crater		world point
extinction level event			impact event				a crater		world point				impact event which can cause the extinction of many species on a planet		100 million years
meteor	or center of gravity		naked eye object				sonic boom		shooting star	meteorite (if meteoroid does not burn up)			A "shooting star" - the streak of light in the sky produced by the transit of a meteoroid through the Earth's atmosphere; also the glowing meteoroid itself. The term "fireball" is sometimes used for a meteor approaching the brightness of Venus; the term "bolide" for one approaching the brightness of the full Moon.		one per hour from a given location on Earth, higher during meteorite shower
meteor event			impact event				a crater		world point				The event in a sequence of the events during the passage of a meteor. They are in order : incandescent flight fireball smoke trail meteoroid break up retardation point dark flight meteorite impact
Torino scale 10 impact			impact event				a crater		world point				impact capable of causing a global climatic catastrophe			100000 years or longer
Torino scale 8 impact			impact event				a crater		world point				collision capable of causing localized destruction			50 to 1000 years
Torino scale 9 impact			impact event				a crater		world point				collision capable of causing regional devastation			1000 to 100000 years

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