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| physical phenomena > event > celestial event > impact event > meteor event > retardation point |
| retardation point comparison table | ||||||
| Subject | occur for | has start time | has altitude | has definition | is a kind of | has duration |
|---|---|---|---|---|---|---|
| meteor event | The event in a sequence of the events during the passage of a meteor. They are in order : | impact event | ||||
| retardation point | meteoroids heavier than 10 tons they impact with a significant fraction of their cosmic velocity | shortly after the time of initial contact with atmosphere but before impact | inversely proportional to the mass of the meteoroid | the point in the flight of a meteoroid through the atmosphere where it loses its cosmic velocity and falls freely due to gravity | meteor event | zero (it is a point in time) |
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