A golden supermoon made an appearance over San Diego County on Monday, and luckily for those who missed it, there are two more opportunities to witness the astrological event this year.

October's Harvest Moon was the first of four consecutive supermoons through early next year. Here's what you should know.

What makes a 'supermoon?'

More a popular term than a scientific one, a supermoon occurs when a full lunar phase syncs up with an especially close swing around Earth. This usually happens only three or four times a year and consecutively, given the moon’s constantly shifting, oval-shaped orbit.

A supermoon obviously isn’t bigger, but it can appear that way, although scientists say the difference can be barely perceptible.

At its closest point, the full Moon can appear up to 14% bigge

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