The name Hunter's Moon is derived from Native American, European and colonial sources. Look for it tonight -- and you can see a comet, too.

October's supermoon, known as the "Hunter's Moon," will be the biggest and brightest full moon of the year. Why it matters: The third of this year's four consecutive supermoons arrives during an active month of skywatching between rare northern lights sightings and the once-in-a-lifetime comet.