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Never-Before-Seen Meteor Shower Over SF: Tau Herculids (May 30-31)

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Monday, May 30, 2022 - 10:00 pm | Cost: FREE
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Want to see some shooting stars? You just might be in luck on Memorial Day.

A possible newcomer this year is the tau Herculid shower, forecast to peak on the night of May 30, 2022 and early morning of May 31, 2022.

Your best chance to see the meteor shower in the Bay Area will be 10 p.m. PDT on Monday, May 30, 2022.

Back in 1930, German observers Arnold Schwassmann and Arno Arthur Wachmann discovered a comet known as 73P/Schwassmann-Wachmann, or “SW3, which orbited the Sun every 5.4 years. Being so faint, SW3 wasn’t seen again until the late 1970s, seeming pretty normal until 1995, when astronomers realized the comet had become about 600 times brighter and went from a faint smudge to being visible with the naked eye during its passage. Upon further investigation, astronomers realized SW3 had shattered into several pieces, littering its own orbital trail with debris. By the time it passed our way again in 2006, it was in nearly 70 pieces, and has continued to fragment further since then.

If it makes it to us this year, the debris from SW3 will strike Earth’s atmosphere very slowly, traveling at just 10 miles per second – which means much fainter meteors than those belonging to the eta Aquariids. But North American stargazers are taking particular note this year because the tau Herculid radiant will be high in the night sky at the forecast peak time. Even better, the Moon is new, so there will be no moonlight to wash out the faint meteors.

“This is going to be an all or nothing event. If the debris from SW3 was traveling more than 220 miles per hour when it separated from the comet, we might see a nice meteor shower. If the debris had slower ejection speeds, then nothing will make it to Earth and there will be no meteors from this comet,” Cooke said.

For your best chances to view the possible meteor shower, head to an area with dark sky. Look up and let your eyes adjust to the dark for about 20 minutes, and hope for clear skies. Be patient; meteor watching is a waiting game.

Read more at NASA. Learn more about meteors and meteorites. Also, if you want to know what else is in the sky for May, check out the latest “What’s Up” video from Jet Propulsion Laboratory:

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.


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