The darkest part of the eclipse will occur at 4:12 p.m. ET - still daylight in North America. But most Europeans will be able to view the eclipse as the sun will be setting at that time.
The extended length of the eclipse - the longest since 2000 - results from the moon’s current path which will pass almost directly through the center of the Earth’s shadow (where it’s widest) according to National Geographic.
The appearance of eclipse may be altered by the volcano in Chile, spewing sulfur dioxidie into the atmosphere.
“Particles in the southern stratosphere could cause a darkening of the southern part of the Moon during totality,” University of Colorado atmospheric scientist Richard Keen told SpaceWeather.com.
For North Americans who don’t want to miss it, WJLA reports two websites will air it live:
UPDATE: You can also watch it live here at WashingtonPost.com’s BlogPost blog between 2 and 6 p.m. ET.