Meteor-shower meaning

The appearance of a group of meteors coming from the same area in the sky, usually the result of the earth passing through the trail of a comet: meteor showers are typically named after the constellation closest to the radiant.
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A large number of meteors that appear over a period of hours or days and seem to come from the same direction in the sky.
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(astronomy) A phenomenon occurring when many meteors are seen on Earth during a short period of time.
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A brief period of heightened meteor activity, often occurring regularly in a particular part of the sky at a particular time of year. Meteor showers are generally named after the constellation in which they appear to originate; thus the Perseids appear to originate in the constellation Perseus and the Leonids in the constellation Leo. The showers occur when the Earth passes through a region having a greater than usual concentration of interplanetary debris, such as particles left by a disintegrating comet, at certain points in its orbit. Although the meteors enter the Earth's atmosphere on parallel trajectories, perspective makes it appear as if they originate from the same point in the sky, known as the radiant.
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