'Supermoon' lights up the sky

The largest full moon of 2013, a so-called "supermoon," will light up the night sky this weekend, but there's more to this lunar delight than meets the eye. On Sunday, June 23, at 7 a.m. EDT, the moon will arrive at perigee — the point in its orbit bringing it closest to Earth), a distance of 221,824 miles.


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A "supermoon" is seen behind the Christ the Redeemer statue in Rio de Janeiro, Sunday, May 6, 2012. A supermoon is the coincidence of a full moon (or a new moon) with the closest approach the moon makes to the Earth. (AP Photo/Victor R. Caivano)

A supermoon lights up Waikiki and Diamond Head Saturday, May 5, 2012, in Honolulu. A "supermoon" event happens when the moon is closest to the earth therefore the biggest and brightest full moon of the year. (AP Photo/Eugene Tanner)

Spectacular 'Supermoon' Wows Skywatchers Around the World

The supermoon of 2012 rises over Entiat, Wash., in this photo by skywatcher Tim McCord snapped on May 5, 2012.

"Supermoon" lights up

A runner makes his way along a trail on a butte in front of the "supermoon" at Papago Park in Phoenix, Arizona May 5, 2012. A "supermoon" will light up Saturday's night sky, May 5, in a once-a-year cosmic show, overshadowing a meteor shower from remnants of Halley's Comet, the U.S. space agency NASA said. The Moon will seem especially big and bright since it will reach its closest spot to Earth at the same time it is in its full phase, NASA said.

"Supermoon" lights up

The "supermoon" rises over the Renkert Building, Saturday, May 5, 2012 in Canton, Ohio. The biggest and brightest full moon of the year arrives Saturday night, May 5 as our celestial neighbor passes closer to Earth than usual.

'Supermoon' lights up the sky

The full moon rises behind the Temple of Poseidon in Cape Sounion, south east of Athens, Greece, while tourists watch, on Saturday, May 5, 2012. Saturday's event is a "supermoon," the closest and therefore the biggest and brightest full moon of the year.

"Supermoon" lights up

The "supermoon" rises over some apartment buildings in Toronto, May 5, 2012. A "supermoon" will light up Saturday's night sky in a once-a-year cosmic show, overshadowing a meteor shower from remnants of Halley's Comet, the U.S. space agency NASA said. The Moon will seem especially big and bright since it will reach its closest spot to Earth at the same time it is in its full phase, NASA said.

"Supermoon" lights up

The "supermoon" rises behind statues of angels fixed at the St. Isaak's Cathedral in St.Petersburg, Russia, Saturday, May 5, 2012. Saturday's event is a "supermoon," the closest and therefore the biggest and brightest full moon of the year.

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