Full Moon 2021: What is a Worm ‘supermoon’ and how do you see it this weekend?

The third full moon of 2021 will appear this weekend, allowing viewers of the skies to see the largest and brightest moon of the year to date.

The Worm Moon in the northern hemisphere is traditionally called the full moon of March, because it comes in late winter when the earth begins to melt.

Nasa chief executive Gordon Johnston also noted that this month ‘s moon could be considered a “supermoon” by some definitions due to its proximity to Earth.

Originally created by astronaut Richard Nolle in 1979, a supermoon is usually considered a new or full moon that is within 90 percent of the perigee – the closest way to Earth.

“Supermarkets have become very popular over the last few decades. As you explain this definition, in a typical year there can be two or four total supermoons in a row and two to four new supermoons in a row, ”Mr Johnston wrote in a blog post.