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sporadic meteor
A meteor that occurs randomly, instead of being associated with a meteor shower. Sporadic meteors can be seen as "shooting stars" on any clear night, with rates varying between 3-4 meteors per hour in the spring to 8-10 meteors per hour in the autumn. As well as this seasonal variation, there is also a nightly variation – hourly rates being generally higher just before dawn than they are in the late evening.
Related category
• METEORS AND METEORITES
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