On Tuesday (April 7) at 2:08 p.m. EDT (1808 GMT), the moon will arrive at its closest point to Earth in 2020: a distance of 221,772 miles (356,907 kilometers) away. And 8 hours and 35 minutes later, the moon will officially turn full.
Although a full moon theoretically lasts just a moment, that moment is imperceptible to ordinary observation, and for a day or so before and after most will speak of seeing the nearly full moon as "full," although if you look carefully enough, you'll be able to tell that on Monday night and Wednesday night, the moon will appear ever-so-slightly out of roundness compared to Tuesday night. The narrow strip of darkness will appear on the left side of the moon on Monday and the right side of the moon on Wednesday.
What was once called a "perigean full moon" is now referred to in popular parlance, as a "supermoon."
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