An unusually large full moon rose in a clear sky over Fairfield County Saturday night.  It's a super "perigee moon," the biggest in almost 20 years. "The last full moon so big and close to Earth occurred in March of 1993," says Geoff Chester of the U.S. Naval Observatory in Washington, D.C. "I'd say it's worth a look."

According to the National Aeronautics and Space Administration, full moons vary in size because of the oval shape of the Moon's orbit. It is an ellipse with one side (perigee) about 50,000 km closer to Earth than the other (apogee). Perigee moons are about 14% bigger and 30% brighter than lesser moons that occur on the apogee side of the lunar orbit. "The full moon of March 19th occurs less than one hour away from perigee -- a near-perfect coincidence that happens only [every] 18 years or so," adds Chester.

What did you think of this unusual lunar occurrence? Leave a comment below.