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Supermoon June 2013: Everything You Need To Know About Perigee Moon This Weekend (PHOTOS)

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Send us your supermoon photos this weekend!

You can tweet your photos with hashtag #HPsupermoon. Or, you can submit them directly to our "Supermoon 2013" slideshow, which will be featured in our supermoon live blog on the evening of Sunday, July 23.

We'll be collecting user photos from all over, and yours may be featured!

One of the biggest celestial events of the year is almost upon us!

Set to peak on Sunday, June 23, the 2013 supermoon is noteworthy not only for the remarkable sight it will present to skywatchers but also because it will be the largest supermoon this year.

Also known as a perigee moon, the event occurs when a full moon lines up with the Earth and the sun at a specific point in its orbit, called the lunar perigee. That's the point at which the moon is nearest to Earth as it traces its elliptical path around our planet.

Since it's closer to us, the moon appears up to 14 percent bigger and 30 percent brighter than usual. Coined by astrologer Richard Nolle, the term "supermoon" essentially means a bigger and brighter full moon.

But what makes Sunday's supermoon so special?

While skywatchers will be able to spot another supermoon in July, the moon will not be this close again until August 2014.

The moon will turn full at 7:32 a.m. EDT Sunday. It will reach its closest point to the Earth 22 minutes earlier and will be visible after the sun sets that evening.

So be sure to step outside Sunday night to catch a glimpse of the June 2013 supermoon. (To see the perigee moon in all its oversized glory, try to spot it at moonrise or moonset, when it's on horizon.)

Can't make it outside? Follow HuffPost Science's coverage and see photos from around the world.

Infographic by Jan Diehm for The Huffington Post.

Can you top last year's supermoon photos? Check out these breathtaking images of the 2012 supermoon:

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