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Leonid meteor shower 2020: When, where & how to see it

In mid-November, the fickle Leonid meteor shower hits Earth once again. This annual meteor shower, which peaks overnight on Nov 16-17, is responsible for some of the most intense meteor storms in history. Sometimes, meteors fall at rates as high as 50,000 per hour.

These meteor storms only happen rarely, but viewers this year will see more Leonid meteors than in 2019, because the thin, crescent moon will be only 5% illuminated during the night of the peak. The best time to look in past years was before dawn around 3 a.m. EST (0800 GMT) on the morning of the peak, according to Jane Houston Jones of NASA's Jet Propulsion Laboratory. 

Related: Top 10 Leonid meteor shower facts

This image is a composition of 33 Leonids captured overnight from Nov. 18 to 19, 2001.  (Image credit: Courtesy of Koen Miskotte)

When to see the Leonids

The Leonid meteor shower peaks on the night of Monday, Nov. 16, and early the following morning. Skywatchers may be able to see some meteors on days just before and after the peak. 

According to NASA meteor expert Bill Cooke, without moonlight skywatchers can expect to see around 10-15 meteors per hour during the peak. 

Where to see them

The radiant, or point of origin, of the Leonid meteors is located in the constellation of Leo, the lion.

The Leonid meteor shower gets its name from the constellation Leo, the lion, where its meteors appear to originate. But you can look in just about any direction to enjoy the show, Cooke said. If you directly face Leo, you may miss the meteors with longer tails.

Although the meteor shower might be a bit easier to see from the Northern Hemisphere, skywatchers in the Southern Hemisphere should be able to see the show as well. "They're not quite as good, but almost as good," said Cooke. "The Leonids are an OK shower from the Southern Hemisphere."

Related: Most amazing Leonid meteor shower photos

Astrophotographer Jeff Berkes captured this shot of Leonid meteors over a house in New Jersey in 2012. The 2020 Leonids will peak overnight Nov. 17-18. (Image credit: Jeff Berkes)

What causes the Leonids?

The Leonid meteor shower happens every year in November, when Earth's orbit crosses the orbit of Comet Tempel-Tuttle. The comet makes its way around the sun every 33.3 years, leaving a trail of dust rubble in its wake.

When Earth's orbit crosses this trail of debris, pieces of the comet fall toward the planet's surface. Drag, or air resistance, in Earth's atmosphere cause the comet's crumbs to heat up and ignite into burning balls of fire called meteors. 

Related: How comets cause meteor showers

These comet crumbs are usually the size of a grain of sand or a pea, so they tend to burn up entirely before striking Earth's surface. Meteors that survive the whole journey to the ground are called meteorites. But the Leonid meteor shower likely won't deliver any meteorites.

What do you need to see them?

Meteors are visible to the naked eye, so you won't need any special equipment to see them. 

"Go outside, find a dark sky, lie flat on your back and look straight up," Cooke said, "and be prepared to spend a couple of hours outside."

Given that the meteors are fairly sparse and take place during a cold time of year, it is best to bundle up and relax.

Email Hanneke Weitering at or follow her @hannekescience. Follow us @Spacedotcom and on Facebook. Additional reporting by Elizabeth Howell, contributor.

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Hanneke Weitering

SPACE.COM ASSOCIATE EDITOR — Hanneke joined the team at in August 2016 as a staff writer and producer. She has previously written for Scholastic, MedPage Today, Scienceline and Oak Ridge National Lab. After studying physics at the University of Tennessee in her home town of Knoxville, she earned her graduate degree in Science, Health and Environmental Reporting (SHERP) from New York University.