Peaks 12–13 August
ZHR 110
The Perseids
The one everybody knows, and the only one that happens in short sleeves.
More than a hundred an hour at the peak under a dark sky, from a comet with a sixteen-mile nucleus that comes back every 133 years. Most of the shower's popularity is scheduling: it is the one good display that falls in warm, dry, holiday weather in the northern hemisphere.
- Peak
- 12–13 August, most years
- Zenithal hourly rate
- 110
- Radiant
- Perseus, high in the northeast after midnight
- Debris from
- comet 109P/Swift–Tuttle
Where you can see it
The radiant rises everywhere north of 32°S. From mid-northern latitudes (40°N) it climbs to about 65° before dawn. From mid-southern latitudes (35°S) it never rises.
The height is the radiant's, the point the meteors seem to come from, on the peak night, counting only the hours when the Sun is at least 12° below the horizon. The lower it is, the fewer meteors reach you: at 30° up you would see about half the rate above, before the Moon and your own sky take their share.