21:00
0 meteors so far
Mid-August. Earth is crossing the dust trail of comet 109P/Swift–Tuttle.
The radiant, in Perseus, is still low: meteors skim the sky above the horizon.
As Perseus climbs, more of the stream reaches you: about 67 an hour by midnight.
A fireball: a larger grain, burning up at 59 km a second.
With the radiant high, the rate nears its peak of about 95 an hour.
Dawn washes out all but the brightest. The show is over.
Each tile is one hour's Resting frame: what a reader who prefers reduced motion sees, drawn by
@motly/core from the same Spec and Seed as the sky above.
Rates are a model, not a night's counts: ZHR 100 × sin(radiant altitude), for a dark site at 50° N on the peak night, in local solar time, leaving out twilight and the Moon. Radiant and ZHR from the IMO 2024 Meteor Shower Calendar.