Viewing conditions should be ideal in NY as the first full moon of fall - known as the hunter's moon - rises in the night sky.

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.

Along the lunar orbital path, the point of closest proximity is known as perigee, which is when the moon is, on average, 226,000 miles (363,300 kilometers) from Earth. When a full moon phase coincides with perigee, a supermoon event occurs.