• Video
  • Shop
  • Culture
  • Family
  • Wellness
  • Food
  • Living
  • Style
  • Travel
  • News
  • Book Club
  • Newsletter
  • Privacy Policy
  • Your US State Privacy Rights
  • Children's Online Privacy Policy
  • Interest-Based Ads
  • Terms of Use
  • Do Not Sell My Info
  • Contact Us
  • © 2026 ABC News
  • Living

How to watch the longest partial lunar eclipse since 1440

0:12
Longest lunar eclipse in nearly 600 years happens Friday
Leon Lord/AFP via Getty Images, FILE
ByKaila Nichols
November 18, 2021, 9:55 PM

Skywatchers, the longest partial lunar eclipse since 1440 will take place Friday, and you'll have the chance to view a historic cosmic wonder in the sky.

The partial eclipse is the longest of its kind, and NASA estimates it will not occur again for another 648 years.

This partial lunar eclipse will reach its highest point at 4:03 a.m. ET, for those on the East Coast and 1:03 a.m. PT, for those on West Coast. North America, South America, Eastern Asia, Australia and the Pacific region will be able to see at least part of it.

NASA predicts the eclipse will last for 3 hours, 28 minutes and 23 seconds.

On November 19, 2021 (late evening of the 18th in some time zones), the Moon passes into the shadow of the Earth, creating a partial lunar eclipse so deep that it can reasonably be called almost total.
NASA's Scientific Visualization Studio

In a lunar eclipse, the sun, Earth and moon align, and the moon moves into Earth’s shadow.

This time, viewers can expect to see the moon turn red and about 99.1% of the moon will be in the Earth's umbra, according to NASA.

NASA said the best way to see the eclipse is with binoculars or a telescope to bring out the color, but you can also go outside and just look up.

The longest total eclipse will take place on Nov. 8, 2022.

Related Topics

  • Space

Up Next in Living—

What to know about the high school 'senior assassin' water gun game police departments are warning about

April 17, 2026

Trader Joe's customers may be eligible for money after $7.4M settlement over receipt data

April 17, 2026

Zookeeper shares update on Punch the monkey, whether he has a girlfriend

April 17, 2026

6-week-old kitten rescued from vat of glue is named Elmer

April 16, 2026

Shop GMA Favorites

ABC will receive a commission for purchases made through these links.

Sponsored Content by Taboola

The latest lifestyle and entertainment news and inspiration for how to live your best life - all from Good Morning America.
  • Contests
  • Terms of Use
  • Privacy Policy
  • Do Not Sell My Info
  • Children’s Online Privacy Policy
  • Advertise with us
  • Your US State Privacy Rights
  • Interest-Based Ads
  • About Nielsen Measurement
  • Press
  • Feedback
  • Shop FAQs
  • ABC News
  • ABC
  • All Videos
  • All Topics
  • Sitemap

© 2026 ABC News
  • Privacy Policy— 
  • Your US State Privacy Rights— 
  • Children's Online Privacy Policy— 
  • Interest-Based Ads— 
  • Terms of Use— 
  • Do Not Sell My Info— 
  • Contact Us— 

© 2026 ABC News