The so-called Supermoon, or perigee moon, rises behind a cloud near the landmark 73-story tall U.S. Bank Tower on July 12, 2014 in Los Angeles, Calif.

A perigee moon, also known as a supermoon, rises over the Queens borough of New York, Saturday, July 12, 2014.

Traffic streaks by the supermoon as it rises behind the Memorial Bridge in Washington, Saturday, July 12, 2014.

A plane flies pasts a supermoon as a palm tree grows in the foreground during a baseball game between the Los Angeles Dodgers and the San Diego Padres at Dodger Stadium, Saturday, July 12, 2014, in Los Angeles, Calif.

A perigee moon, also known as a supermoon, is seen behind Israelis sitting and standing on a hill at the Israeli town of Sderot, overlooking the Gaza Strip, as they wait to watch Israeli forces' bombardment and missiles fired by Palestinian militants from inside Gaza towards Israel, Saturday, July 12, 2014.

The full moon rises above the castle of Somoskoujfalu, 123 kms northeast of Budapest, Hungary, late Saturday, July 12, 2014.

A perigee moon, also known as a supermoon, looks over the grand Faisal mosque in Islamabad, Pakistan, July 12, 2014.

A perigee moon also known as a supermoon rises above Dojran Lake in southeastern Macedonia, July 12, 2014.

The moon is pictured one day ahead of the Supermoon phenomenon as it rises over buildings in Long Island City, seen from a bridge over 42nd St. in the Manhattan borough of New York July 11, 2014.

The full Moon sets in the fog behind the Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, Saturday, July 12, 2014, launch Pad-0A, NASA's Wallops Flight Facility in Virginia.

The moon rises Saturday, July 12, 2014 over metropolitan Manila in the Philippines in one of the three "Supermoon" occurrences for this year.

A perigee moon, also known as a supermoon, rises over a crescent of a minaret of grand Faisal mosque in Islamabad, Pakistan, Saturday, July 12, 2014.

The full moon is seen Saturday, July 12, 2014, in Nairobi, Kenya.