On any clear, dark night, even with no named shower running, a patient watcher sees a handful of meteors an hour. These are sporadics, stray bits of rock and dust the Earth sweeps up as it travels. A few times a year the planet plows through the debris trail of a comet or an asteroid, and the count climbs from a handful to dozens. Those are the named showers. Whether there is one peaking tonight depends on the date, and the real calendar below tells you which window you are in.
What a meteor shower actually is
A comet on its long orbit sheds a river of grit behind it. That grit stays in orbit long after the comet has gone. Once a year the Earth crosses the same river, and the grains hit our atmosphere at tens of thousands of miles an hour and burn up in a streak of light. Because they all come from the same direction in space, they appear to fan out from a single point in the sky called the radiant, and the shower is named for the constellation that point sits in.
The major showers, and when they peak
Eight showers are dependable year after year. These dates are the peak nights. Activity ramps up for several nights on either side, so you do not need to catch the exact date to see a good show.
How to tell what is up tonight
The quickest way to know whether a shower is peaking tonight is to check the live sky over your own location rather than a fixed calendar, because the Moon, the weather and your horizon matter as much as the date. A near full Moon washes out all but the brightest streaks. A shower whose radiant does not rise until the small hours gives you nothing before midnight. The live instrument reads your sky now and tells you both what is active and when it climbs high enough to bother going outside.
How to watch so you actually see them
You need no telescope and no binoculars. A telescope is the wrong tool here, because it narrows the sky to a keyhole and meteors cross the whole dome. Get away from streetlights, lie back so you take in as much sky as you can, and give your eyes a full twenty minutes to adjust in the dark. Put the phone away, because one glance at a bright screen resets that adjustment. The hours after midnight are almost always better than the evening, since that is when your side of the Earth turns to face the direction of travel.
Be outside at the hour the sky is actually full.
The difference between a few meteors and a hundred is timing, and timing is Moon, radiant height and your own horizon lining up. Magna Earth watches the sky over your exact coordinates and tells you the night and the hour a shower is worth the cold, so you are lying on the hood of the car when it peaks rather than reading about it the next day.
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