Early Monday morning - or evening, depending on where you live - the largest full moon of the year, called the supermoon, shined its biggest and brightest in nearly 70 years.

Size is relative though. The November 14 supermoon was about 14 percent bigger and 30 percent brighter than its smallest apparent size, called a micromoon.

That's because the moon's 27 day, 7 hour, 43 minute orbit around the Earth isn't a perfect circle, but an ellipse. You get a closer point to Earth, or perigee, and a more distant point, or apogee.

The moon's apogee this month is about 252,000 miles (405,554 km) away, and on Monday its perigee was about 222,000 miles (357,274 km) away.

Here's what this apparent size change looks like over the course of the year: