How to watch the longest partial lunar eclipse of this century


NASA caught sight of a supermoon lunar eclipse on Sept. 27, 2015. The November 2021 partial eclipse will not be fairly this eye-popping, however it’ll nonetheless be lovely.

NASA/Rami Daud

It is nearly celestial showtime. There is a partial lunar eclipse on faucet for Nov. 18-19 and it is notable for a way lengthy it’ll final. The Earth’s shadow will largely block the solar’s mild from reaching the moon, tinging our lunar neighbor with darkness.

NASA statistics on lunar eclipses from 2001 through 2100 present this month’s partial eclipse would be the longest of the century with a length of over 3 hours and 28 minutes. Evaluate that with the longest whole eclipse of the century, which occurred in 2018 and stretched for almost an hour and 43 minutes.

The Holcomb Observatory in Indiana shared a handy graphic displaying what to anticipate from the eclipse, which is able to cowl a lot of the moon. “This may also be the longest partial lunar eclipse in 580 years,” the observatory tweeted.

What a partial eclipse seems to be like


A partial lunar eclipse does not cowl the whole moon with shadow.


Lunar eclipses do not have the identical dramatic look as a photo voltaic eclipse the place it seems to be like somebody is carving a black gap out of the aspect of the solar. 

Throughout a lunar eclipse, the moon darkens and generally takes on a reddish coloration. For a partial eclipse, Earth’s shadow does not utterly cowl the moon. Partial eclipses are nonetheless improbable experiences.

“Partial lunar eclipses may not be fairly as spectacular as whole lunar eclipses — the place the moon is totally lined in Earth’s shadow – however they happen extra often,” NASA said in a skywatching update. “And that simply means extra alternatives to witness little modifications in our photo voltaic system that generally happen proper earlier than our eyes.”

When to observe the lunar eclipse

The eclipse shall be seen to a big space of the globe throughout the night of Nov. 18 and into Nov. 19. Precise viewing occasions will rely in your location, however at the least a number of the eclipse shall be seen in a lot of the Americas, Australia, and in elements of Europe and Asia. The US shall be in an important place to catch the eclipse motion.

Head over to and search for your location to get your occasions. If you wish to watch the complete course of, you possibly can be in for a protracted night time. For instance, the partial-eclipse part will kick off at 12:18 a.m. MT on Nov. 19 for me in Albuquerque, New Mexico, and attain its most at about 2:02 a.m. I am going to in all probability goal to set an alarm for nearer to most quite than stand out within the chilly for hours. 

How you can watch the lunar eclipse from anyplace

You’ve gotten on-line choices for following the moon motion. These video feeds are an excellent fallback in the event you encounter cloudy climate, or in the event you simply do not need to keep up late or rise up early to observe the eclipse in particular person.

The Virtual Telescope Project will go live with coverage of the eclipse at 11 p.m. PT on Nov. 18 (7 a.m. UTC on Nov. 19). VTP is collaborating with astrophotographers from all over the world together with providing reside commentary from astrophysicist Gianluca Masi. has organized for its personal livestream beginning at 11 p.m. PT on Nov. 18.

Eclipses aren’t on a regular basis occurrences on Earth, and so they’re not at all times simply seen. Whereas some viewers may need to take care of middle-of-the-night scheduling for this month’s celestial occasion, it is value taking a second to marvel at how the moon, the solar and our planet are related as residents of this photo voltaic system. | How you can watch the longest partial lunar eclipse of this century


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