Skywatchers across the Northern Hemisphere are set for a rare celestial double feature this week, as the Perseid meteor shower reaches its annual peak on the very same night a total solar eclipse sweeps across parts of Europe and the Arctic.
The Perseid meteor shower has been active since mid-July but is expected to peak overnight from Wednesday into Thursday. The International Meteor Organization places the nominal peak between 2am and 4am UTC on 13 August, according to The Watchers, while EarthSky puts the moment of maximum activity at 10.53am ET on Thursday.
What Does A Meteor Shower Look Like: What Does A Meteor Shower Actually Look Like To The Naked Eye?
A meteor shower appears as brief, bright streaks of light darting rapidly across the night sky, each one lasting only a fraction of a second as tiny particles of comet debris burn up in Earth’s atmosphere. The Perseids are especially prized for producing fireballs, meteors that burn exceptionally bright and remain visible for longer than typical shooting stars.
Fireballs travelling at fast rates create glowing, colourful smoke trails made of vaporised dust particles that leave streaks across the sky, American Meteor Society operations manager Robert Lunsford explained in a broadcast.
What Does A Meteor Shower Look Like: Why Are Viewing Conditions Considered So Favourable This Year?
This year’s peak coincides with a new moon, meaning the night sky will be free of interfering lunar glare just as activity reaches its highest point. Because the moon’s illuminated side is currently facing the sun, with its night side facing Earth, bright moonlight will not wash out the display, according to reports. Sky at Night presenter Pete Lawrence noted that having the moon completely out of the way right at peak Perseids makes for potentially perfect conditions, according to BBC Sky at Night Magazine. Under ideal conditions, clear weather and dark skies, the Perseids can produce as many as 100 shooting stars per hour.
What Does A Meteor Shower Look Like: How Does The Solar Eclipse Fit Into This Week’s Sky Show?
Wednesday’s total solar eclipse will pass over parts of Iceland, Greenland, northern Spain and a small part of Portugal, offering millions the chance to witness totality, the brief window when the moon fully blocks the sun’s light and darkens the sky. This marks the first time a total solar eclipse and the Perseids’ peak have coincided in the 21st century. Observers positioned along the path of totality, where the eclipse occurs closer to sunset, may even catch a glimpse of Perseid meteors streaking across the sky during those darkened minutes, according to EarthSky’s reporting.
What Does A Meteor Shower Look Like: Where Does The Perseid Meteor Shower Actually Come From?
The Perseids occur every year as Earth’s orbit crosses the debris trail left behind by comet Swift-Tuttle, an unusually large comet roughly 16 miles across, according to Scientific American. The shower takes its name from the constellation Perseus, from which the meteors appear to radiate, and observations of the Perseids date back more than 2,000 years. The shower remains active from mid-July through late August, though the concentration of visible meteors climbs sharply in the days surrounding its peak before tapering off again toward the end of the month.
