Jul 12, 2014 1:41 AM by RaeAnn Christensen, KSBY Forecaster

"Supermoon" will rise on Saturday

The moon very early Saturday morning may appear to be unusually big, but it's just an illusion. What you are seeing is a "supermoon."

That's the nickname for full moons that happen when the moon is relatively close to Earth. That distance varies because the moon follows an elliptical orbit. When it's close and full, it appears bigger and brighter than normal, although in fact the difference can be hard to detect.

If you see Saturday's moon close to the horizon it may seem huge, but that's just an illusion caused by its position in the sky.

It will appear the largest on the west coast at about 4:25 a.m. Saturday morning. We may have some clouds in the way as the marine layer moves in. But you still could get a peek in some areas.

There will be two other full moons this summer, on August 10th and September 9th that will also be supermoons.

It's not all that unusual to have a supermoon. There were three in a row last year.



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