Monday, August 13, 2007

Perseids Meteor Shower

clipped from www.imo.net

Perseids (PER)



Active: July 17 —August 24
Maximum: August 13; 5h7h30m UT (λ = 140°0140°1) - but see text
ZHR = 100
Radiant: α = 046°; δ = +58°
Radiant drift: see Table 6
v = 59 km/s; r = 2.6
TFC: α = 019°; δ = +38° and

α = 348°; δ = +74° before 2h local time

α = 043°; δ = +38° and

α = 073°; δ = +66° after 2h local time (β > 20° N)
IFC: α = 300°; δ = +40°; α = 000°; δ = +20° or

α = 240°; δ = +70° (β > 20° N)