The super snow moon is the second of three supermoon events in the first three months of the year - a packed lunar calendar for 2019, which marks the 50th anniversary of Apollo 11, the mission that took the first humans to the moon.
"The February 2019 supermoon is special because it will be the largest full moon gracing our night skies until 2026", said Emily Drabek-Maunder, astronomer at Royal Observatory Greenwich.
The supermoon will occur during this full moon because it will be closest in its orbit to Earth.
The supermoon comes into play when the earth and moon 224,775 miles or closer during the full moon phase.
Sorry for all the math but Monday nights moon will appear 14% longer and 30% brighter and with all the snow...it will seem even brighter.
February's full moon is known as the snow moon, a reference to its presence during a month that brings snow to many parts of North America and Europe.
"You'll be able to see the Moon over the entire night from London if the skies remain clear".
For those wondering why the term "Snow" has been added to the Supermoon, this is because full moons in February are referred to a Snow moons by Native Americans and this is also listed in the Farmer's Almanac.
"The event, occasionally called a Supermoon, will appear up to 16 percent brighter than the average value".
Called the Snow Moon (because February is.... well, snowy), tonight's supermoon is already our third this year. This month's full moon will be 221,734 miles from Earth.
The next full moon will be on March 20, and while it is also going to be a "supermoon" it will not be as big as the super snow moon. This week's perigee will be about 362 miles (583 kilometers) closer to us than last month's supermoon. The Moon's orbit around the Earth has an oval or elliptical shape.