Whether you
call it super, snow or full, the biggest, brightest moon of the year is coming
to a sky near you Tuesday, Feb. 19. A supermoon occurs when the moon is as
close as it ever gets to Earth. On Tuesday, our moon will “only” be about
221,000 miles from Earth, which is about 17,000 miles closer than average.
The moon’s
distance from the Earth changes because its orbit isn’t a circle. When the moon
is closest to Earth, astronomers call it “perigee,” said Hanneke Weitering of
Space.com. When the full moon coincides with perigee, you’ve got a supermoon.
Bigger and
brighter than a typical full moon, the term “supermoon” was coined in 1979 by
astrologer Richard Nolle. It’s become an
increasingly more popular and media-friendly term in the decades since then.
The moon’s closeness to Earth, naturally, makes it look extra close and extra
bright – up to 14 percent bigger and 30 percent brighter than a full moon at
its farthest point from Earth, known as the apogee, NASA said.
Although
this supermoon (and full moon) will officially occur Tuesday morning, you don’t
have to wait for a specific moment to catch all the fun. The moon will appear
plenty bright, big and mostly full for the entirety of Sunday, Monday and
Tuesday nights – barring pesky clouds.
Look skyward
overnight Sunday and early Monday and you're in for a treat: A brighter, larger
full moon than usual. It's called a supermoon, and this one's.
It’s
especially big just as it rises above the horizon: This is called the “moon
illusion” and it’s a way that your brain processes objects on the horizon, said
Dean Regas, astronomer for the Cincinnati Observatory. “The moon isn’t actually
bigger, it just looks like it,” he said. “This perceived increase in size
happens whenever you see the moon, regardless of its phase, near the horizon.”
Look skyward
overnight Sunday and early Monday and you're in for a treat: A brighter, larger
full moon than usual. It's called a supermoon, and this one's
The
supermoon will make the moon seem even bigger. If you miss this month’s
supermoon, there will be another one on March 21, EarthSky said, but it won’t
be quite as big or spectacular as this one.
Snow moon
The full
moon this month is also nicknamed the snow moon. For millennia, people across
the world, including Native Americans, named the months after nature’s cues.
According to the Old Farmers’ Almanac, full moon names in our part of the world
date back to the Native Americans who lived in the northern and eastern U.S.
Each full moon has its own name.
“The tribes
kept track of the seasons by giving distinctive names to each recurring full
moon,” the almanac said. “Their names were applied to the entire month in which
each occurred.”
This month
it’s the snow moon due to the month’s typically heavy snowfalls. Calling
February’s full moon the snow moon is right on target: On average, February is
the USA’s snowiest month, according to data from the National Weather Service.
The Old Farmer’s Almanac also said some tribes referred to February’s moon as
the “hunger” moon, because harsh weather conditions made hunting difficult.
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