Full Moon Sunday Kicks Off 'Supermoon Trilogy,' Including a Lunar Eclipse
By Elizabeth Howell, Space.com Contributor | December 2, 2017 07:59am ET
Sunday night's Full Cold Moon a bigger and brighter full moon than usual will kick off a very special "supermoon trilogy," NASA says.
The Dec. 3 full moon is the first of three consecutive supermoons, including a lunar eclipse. The other supermoons will happen on Jan. 1 and Jan. 31, 2018. You can watch Sunday's supermoon live online here, courtesy of the online astronomy service Slooh or directly from Slooh.com here.
If you only have time to catch one of them, be sure to check out the "extra-special" Jan. 31 supermoon, NASA said in a statement Friday (Dec. 1). The late January supermoon will take place during a total lunar eclipse visible from western North America, the Pacific and Eastern Asia. It will also be a blue moon, too. [Supermoon 2017 Guide: When and How to See It]
A supermoon occurs when the full moon is at the closest point of its orbit to the Earth, which is also called the perigee. That makes the moon look extra-close and extra bright up to 14 percent bigger and 30 percent brighter than a full moon at its furthest point from Earth, called the apogee.
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