The 'Halloween Hunter's Blue Moon' will rise for the first time in 19 years, and won't grace our skies again until 2039.

This is the second full moon for the month, with the first one, a Harvest moon, occurring on October 1.

Unfortunately, despite the impressive name, the moon won't actually be blue; the term refers to the infrequent occasions when a second full moon occurs in a month.

When the phrase was first coined, it referred to something rare; you'd be lucky to see again in your lifetime.

Generally, each month will only have one full moon, but a second one can occur every two-and-a-half years, on average when the month is a few days longer than usual.

Altogether, there will be 13 full moons in 2020, another rarity because most years only see 12.

According to astronomers, there will be another 'Halloween Hunter's Blue Moon' in 2039, 2058, 2077, and 2096.

2020 Was the Year for Super Moons

When a full moon is within 90 per cent of its closest approach to Earth, it's known as a super moon, which can appear to be at least 14 per cent larger, and 30 per cent brighter than a standard one.

There were four in 2020, with the last one occurring on May 7, the next superman isn't due until April 2021.