The biggest and brightest Moon of the year will be visible on Wednesday and Thursday from around the world.

It will be a rare chance to see what is known as a blue supermoon – the last of which was in 2009.

A blue Moon happens when the pattern of days in a year means there are 13 full Moons instead of the usual 12.

This blue Moon is also known as a supermoon and will appear larger and brighter than usual but it will not be blue in any way.

The name has nothing to do with colour, but is called so because it does not fall in the usual scheme of named Moons.

According to an article by BBC News, a full Moon generally occurs once a month, meaning that an average year has 12.

However, the phases of the Moon actually take 29.5 days to complete, or 354 days for 12 cycles.

This means roughly every two and half years, a 13th full Moon is seen.