Grab your telescopes and cameras and turn your eyes to the skies Saturday night. You won't want to miss another “Super Moon.”
Astronomers are saying that this Super Moon will be even more super than usual.
“The last full moon so big and close to Earth occurred in March of 1993,” Geoff Chester of the U.S. Naval Observatory in Washington D.C. told USA Today.
This Super Moon (a phrase coined by astrologer Richard Nolle in 1979) will appear especially large because the moment of perigee—when the moon is closest to the Earth in its monthly rotation—will coincide with the appearance of a perfectly full moon, Smithsonian points out. During last year’s Super Moon on March 19, 2011, for comparison, the perigee and full moon were 50 minutes apart.
Many say the best time to look for the moon is early evening, just as it's peeking over the horizon. If the weather is clear, you'll see a giant, pumpkin-colored moon slowly rising in the East.
Then at 10:34 p.m. CST Saturday, the moon reaches full moon status—when the earth, moon and sun are all in alignment. One minute later, at 10:35 p.m., “perigee” will occur.
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If you think the moon looks closer than usual Saturday night, it won't be your imagination. The moon will be 221,802 miles away from Earth Saturday night; (the average distance is 238,855 according to NASA). That’s 17,053 miles closer.
This all translates to a moon that will appear 14 percent larger and 30 percent brighter than other full moons this year, according to NASA. (An astronomer interviewed by National Geographic says 16 percent bigger.)
The best time to photograph a full moon, experts say, is at “moonrise.” Moonrise on Saturday will take place at 7:55 p.m. When the moon is near the horizon, illusion mixes with reality to produce a truly stunning view, NASA reports. Low-hanging moons look unnaturally large when they beam through trees, buildings and other foreground objects.
Will the weather cooperate, though? The National Weather Service is calling for scattered thunderstorms, with a low around 55 degrees Saturday night.
For anyone living close to water—a perigee full Moon brings with it extra-high “perigean tides,” but this is nothing to worry about, according to NOAA. Lunar gravity at perigee pulls tide waters only a few centimeters (an inch or so) higher than usual. can amplify the effect to about 6 inches.
Contributing: Mary Ann Barton at Patch.com