'Superest' Supermoon Full Moon of 2014 Rises Tonight: Watch Live Online

by Miriam Kramer, Staff Writer
'Superest' Supermoon Full Moon of 2014 Rises Tonight: Watch Live Online
The supermoon of July 2014 rises over the Chesapeake Bay in this breathtaking photo.

The largest full moon of 2014 rises tonight (Aug. 10), and even if you don't have a clear view of the sky, you can still catch the cosmic action live online.

August's full moon, a so-called "supermoon," rises when the natural satellite is at perigee — the closest point to Earth in its orbit. It is the second of three supermoons this summer, according to NASA 

The online Slooh Community Observatory will offer a free live broadcast of the supermoon full moon tonight 7:30 p.m. EDT (2330 GMT). You can also watch the August supermoon webcast live on on Space.com, courtesy of Slooh. 

While both July and September also play host to perigee full moons, this month's supermoon is the bigger and better than the others this year, according to one NASA scientist. [See amazing images of the July 2014 supermoon]

"This is the supermoon, the 'superest' supermoon," NASA scientist Noah Petro told Space.com during a video interview. "The two full moons around this one are also close, but not the closest. By the strict definition of a supermoon or a perigee moon this one this weekend is the closest full moon of the year. The other ones are spectacular but not quite as close as this one." 

The moon orbits about 238,855 miles (384,400 kilometers) from Earth on average. Today's supermoon brings the moon about 31,000 miles (50,000 km) closer to Earth than it is during its farthest point from the planet. The moon will only be "10s of kilometers" closer to Earth than other full moons this year, according to Petro.

Sunday's full moon will be 30 percent brighter and 14 percent larger than the smallest full moon of the year. Although casual observers of the moon might not notice a difference between the supermoon and other moons this year, regular skywatchers might be able to spot a subtle change in brightness, according to Petro.

One of the best times to see the supermoon is just after sunset tonight. "If you have a clear horizon, get out and check it out," Petro added. "It should be a great show. Of course, any time of night when the moon is high in the sky is a great time as well."

Editor's Note: If you snap an amazing lunar photo of August's "supermoon" and would like to share it with Space.com for a gallery or story, you can send images and comment in to managing editor Tariq Malik at: spacephotos@space.com.

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