The longest lunar eclipse of the century is happening later this month, but it won't be visible to us in North America.

The eclipse, which will take place on July 27, will be visible to most of the Eastern Hemisphere -- Asia, Africa, the Middle East, and Australia will have the best view.

According to Simple Most, the eclipse will last a total of 1 hour and 43 minutes. Most eclipses last around an hour, so the July 27 eclipse is especially long.

What makes this eclipse so long? Simple Most explains, "First, the moon is almost passing through the center of the Earth’s shadow. Second, the moon is at its lunar apogee, or farthest point from Earth, which makes it appear that much smaller — think the opposite of a supermoon."

These factors will make the July 27 eclipse the longest between the years of 2001 and 2100. Fun fact, the longest lunar eclipse of the last century happened all the way back in 2000 (technically, a century ago).