Friday the 13th is known as an unlucky day full of superstitions, but this Friday the 13th has a little something extra in store: a full moon. A full moon on Friday the 13th is a rare occurrence and according to the Farmers' Almanac, it isn't expected to happen again for another 30 years.

NASA says the moon will be completely full late Friday night at 10:33 p.m. local time, though it will appear full to the naked eye on Thursday and Saturday.  This moon will also be known as a "Harvest Moon" since it's a full moon in September.