Perseid meteors

A Dictionary of Astronomy | 1997 | 491 words | Copyright

Perseid meteors A meteor shower, one of the three most active of the year, detectable between July17 and August24. Peak activity normally falls on August12, when the radiant lies at RA 3h 04m, dec. +58°, near the Double Cluster. Activity at maximum is high, with ZHRs ranging from 80 to 140. Perseid meteors are fast (geocentric velocity 60 km/s); many are bright, and a high proportion leave persistent trains. The Perseids are produced by debris from Comet Swift–Tuttle.

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