Supermoon on November 14 will be biggest since 1948

September's 'Harvest Moon' rising over Sand Mountain (Image: Karen Darwin)

September's 'Harvest Moon' rising over Sand Mountain (Image: Karen Darwin)

If you step outside on November 14, you might notice the moon is looking bigger and brighter than usual.

Bigger in fact, than it has appeared at any point in the last 68 years, say scientists.

This month’s supermoon, the penultimate of the year, will be the biggest so far of the 21st century.
We won’t see its like again until 2034, so make sure you get a look.

A “supermoon” occurs when the moon becomes full on the same days as its perigee, which is the point in the moon’s orbit when it is closest to Earth.

The term is borrowed from the pseudoscience of astrology but has been adopted by popular culture and astronomers.

Supermoons generally appear to be 14 percent bigger and 30 percent brighter than other full moons.

While such moons occur around every 13 months, November’s is a special one.

According to NASA, this month’s supermoon “becomes full within about two hours of perigee—arguably making it an extra-super moon.”

In America, the November full moon is known as a “Beaver Moon,” because it arrives at the time of year when fur trappers would hunt the dam-building animals.

CNN’s Doug Criss and Holly Yan contributed to this story.