Biggest Full Moon in 18 Years
Tomorrow, the full moon will appear unusually large in the night sky as it reaches a point in its cycle known as 'lunar perigee'.
On Saturday afternoon at 3 p.m. Eastern Daylight Time, the moon will arrive at its closest point to the Earth in 2011: a distance of 221,565 miles away. And only 50 minutes earlier, the moon will officially be full.
At its peak, the supermoon of March may appear 14% larger and 30% brighter than lesser full moons (when the moon is at its farthest from Earth), weather permitting. Yet to the casual observer, it may be hard to tell the difference.
Previous supermoons occurred in 1955, 1974 and 1992.
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