Because the eclipse occurred when the Moon was nearly farthest from the earth in its orbit, making the moon appear smaller than normal (a phenomenon sometimes called a micromoon), this eclipse was the longest total lunar eclipse that will occur in the 21st century. Totality lasted approximately one hour and 43 minutes, a period "just short of the theoretical limit of a lunar eclipse (one hour and 47 minutes)". The Moon remained at least partially in Earth's shadow for a total of four hours.
This eclipse was the second total lunar eclipse in 2018, after the one on January 31. The July lunar eclipse coincided with Mars being nearly as close as possible to earth, a concurrence that happens once every 25,000 years.
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