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‘Supermoon’ Alert: Biggest Full Moon of 2012 Occurs This Week

Skywatcher Tim McCord of Entiat, Washington caught this amazing view of the March 19, 2011 full moon with a telescope.Skywatcher Tim McCord of Entiat, Washington caught this amazing view of the March 19, 2011 full moon – called a supermoon because the moon was at perigee, the closest point to Earth in its orbit – using a camera-equipped telescope. CREDIT: Tim McCord

Skywatchers take note: The biggest full moon of the year is due to arrive this weekend.

The moon will officially become full Saturday (May 5) at 11:35 p.m. EDT. And because this month’s full moon coincides with the moon’s perigee — its closest approach to Earth — it will also be the year’s biggest.

The moon will swing in 221,802 miles (356,955 kilometers) from our planet, offering skywatchers a spectacular view of an extra-big, extra-bright moon, nicknamed a supermoon.

And not only does the moon’s perigee coincide with full moon this month, but this perigee will be the nearest to Earth of any this year, as the distance of the moon’s close approach varies by about 3 percent, according to meteorologist Joe Rao, SPACE.com’s skywatching columnist. This happens because the moon’s orbit is not perfectly circular.

http://www.space.com/15474-supermoon-full-moon-2012.html

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