The eclipse – which will shadow approximately 97% of the moon – will be one for the history books due to its unusually long duration. This will be the longest partial lunar eclipse “within a stretch of 1,000 years.”
The last time a partial lunar eclipse was this close was on Feb. 18, 1440.
Map showing the visibility of the Nov. 18-19 partial lunar eclipse. Darker areas indicate greater visibility. Check local details for visibility near you. (Credit: NASA/JPL-Caltech)
Weather permitting, the event will be visible from any location where the moon appears above the horizon during the eclipse. The agency said North and South America, Eastern Asia, Australia and the Pacific region will be able to glimpse at least part of the eclipse.
For East Coast observers, the partial eclipse begins shortly after 2 a.m., reaching its peak a couple of minutes after 4 a.m, with the moon’s face largely masked by the umbra, the darkest part of Earth’s shadow. At this point, only a sliver on the bottom left of the “beaver moon” will remain.
On the West Coast, it will begin just after 11 p.m., with a maximum covering at 1 a.m.
Although partial lunar eclipses might not be quite as spectacular, they occur more frequently. No special glasses are required for viewing a lunar eclipse, whereas viewing solar eclipses requires them.
However, skygazers should find a spot away from city light pollution.
This is the second lunar eclipse of 2021.