(Washington, DC) -- Tonight's full moon is being called a "Strawberry Supermoon." NASA says the moon appears 14 percent bigger and 30 percent brighter because it's a "perigee" moon, at its closest point in its orbit around Earth. It's also the lowest full moon on the horizon this year. NASA says it got the name "strawberry" moon from the Algonquin tribes in the Northeast U.S., because it coincided with the strawberry harvest.