Summer is winding down, but the sky is going out with a bang. The Perseid meteor shower, widely regarded as one of the best of the year, peaks the night of Wednesday, August 12, into the early morning hours of Thursday, August 13 — and this year's show comes with a rare astronomical bonus lineup.
Why This Year's Show Is Extra Special
The Perseids' peak is happening during the new moon phase, meaning there will be no moonlight to wash out fainter meteors. "The moon is beautiful, but it's such a diva," said astronomer Aparna Venkatesan of the University of San Francisco. "New moon means we don't have moonlight flooding the sky, and you tend to see way more meteors as a result." NASA calls the Perseids the best meteor shower of the year, capable of producing between 50 and 100 meteors per hour under ideal conditions, while the American Meteor Society offers a more conservative estimate of 30 to 50 meteors per hour from rural viewing areas.
Adding to the spectacle, this year's peak coincides with a total solar eclipse crossing Spain, Iceland, and Greenland, as well as a six-planet parade visible in the night sky — though astronomers note the best meteor viewing will come after the eclipse's totality has passed.
When and How to Watch
To spot the meteors, the advice from astronomers is simple: get away from clouds and city lights, and give your eyes time to adjust to the dark. The Perseids' radiant point — the spot in the sky the meteors appear to streak from — sits near the constellation Perseus, which rises above the northeastern horizon around 11 p.m. before climbing higher through the night. The best viewing window for most of the Northern Hemisphere runs from midnight to dawn on Thursday, when Perseus is high in the northern sky, though early risers aren't required — meteors can start becoming visible as early as 10 p.m. the night before.
Where the Meteors Come From
The Perseids are debris left behind by comet 109P/Swift-Tuttle, an icy body that orbits the sun once every 133 years and isn't due back for another close pass until 2125. As Earth plows through the trail of dust and ice the comet has shed over its many orbits, those tiny particles collide with our atmosphere at extremely high speeds, burning up and creating the bright streaks known as shooting stars. The shower is a perennial favorite in part because it tends to produce brilliant fireballs — unusually large, long-lasting flashes of light — and because it happens to fall during comfortable summer nights rather than a bitter winter one. "We don't have to suffer through a cold winter night to get a good view of meteors," noted astronomer Zach Vanderbosch of McDonald Observatory in Texas.
Missed the Peak? You've Still Got Time
While the shower is at its strongest the night of August 12 into 13, the Perseids remain active and visible through August 24, with the number of meteors gradually declining after peak night. So if clouds roll in or plans get in the way this week, there's still a solid window to catch a few shooting stars before the shower fades out for the year.
Wrapping Up the Summer Sky Show
Between the new-moon darkness, the coinciding solar eclipse, and a rare six-planet parade, this year's Perseid peak offers one of the more stacked nights of skywatching in recent memory. For real-time viewing conditions and an interactive sky guide for your location, see Time and Date's Perseid tracker.
Grab a blanket, find a dark patch of sky, and let the Perseids send summer off in style.