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physical phenomena > event > celestial event > impact event

impact event
subject			fact

impact event	can produce a crater
	has definition The collision of two celestial bodies
	is a kind of celestial event
event	has duration
	has synonym world point
	has time of occurrence

Kinds of impact event :

• asteroid impact (3 kinds, 7 facts)
• comet impact (2 kinds, 5 facts)
• extinction level event (3 facts) - impact event which can cause the extinction of many species on a planet
• meteor (9 facts) (shooting star) - when a meteoroid collides with the atmosphere or surface of a celestial body, kinetic energy is converted to heat, light and sound, Fragment or particle that enters the Earth's atmosphere and is then destroyed through friction, becoming visible as this occurs as a momentary streak of light. At certain times of the year, meteors apparently emanating from a single area of the sky (a radiant) form meteor showers. They are thought to originate within the Solar System. See also meteorite., 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.
• meteor event (7 kinds, 28 facts) - The event in a sequence of the events during the passage of a meteor. They are in order :
  1. incandescent flight
  2. fireball
  3. smoke trail
  4. meteoroid break up
  5. retardation point
  6. dark flight
  7. meteorite impact
• Torino scale 10 impact (3 facts) - impact capable of causing a global climatic catastrophe
• Torino scale 8 impact (3 facts) - collision capable of causing localized destruction
• Torino scale 9 impact (3 facts) - collision capable of causing regional devastation