2015 Perseids prediction
Active: July 17 - August 24.
Maximum: August 13, 06h 30m to 09h 00m UT - IMO.
August 12, 18h 39m UT - Jeremie Vaubaillon.
Parent comet: 109P/Swift-Tuttle (orbit period: 130 year).
ZHR(Zenithal Hourly Rate): 100.
Radiant: α=48 deg, δ= +58 deg.
Speed(V): 59 km/s.
cf. ZHR(Zenithal Hourly Rate): the number of meteors a single observer would see in an hour of peak activity.
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