It will appear 6.2% larger and 12.8% brighter than the average full moon

The phenomenon occurs when the Moon is in its full phase and coincides with perigee, the period in which it approaches Earth. As a result, it appears larger and brighter in the sky.

WHY IS IT NAMED BLUE MOON? The second full moon of the month, an event that occurs within a two-year interval, this is the name given to two full moons in the same month. The Moon will not turn blue.