SANTA CRUZ, Calif. -

If you're out drinking at Cinco de Mayo parties Saturday night and the moon looks strikingly bigger and brighter than normal, it's not just the tequilla messing with your mind.

The biggest full moon of the year, dubbed "supermoon," will be happen at 8:35 p.m. Saturday.

You can upload your photos of the supermoon to KSBW.com's ulocal section.

Why is this full moon "super"? As the moon orbits the Earth, there are specific times when it is closest to and farthest away from our planet. Saturday's moon will get within 221,802 miles of Earth.

The best location to view the moon at its largest is when it is along the horizon after rising and just before setting. Viewing the moon behind buildings and trees creates an optical illusion so it appears even larger.

The last "supermoon" happened in March 2011.

Originally posted here:

Look up! 'Supermoon' to appear on Saturday night