The Milk Moon, also known as the Flower Moon, will be the last supermoon of the year and the fifth full moon. You don’t want to miss this one as it is the third-closest, third-biggest and third-brightest full moon of 2020.
The Flower Moon will reach its peak fullness at 6:45 a.m. Thursday and will appear full through Friday morning, Gordon Johnston, NASA planetary program executive reported. So even if you miss it today, catch it on the next. "The moon will appear full for about three days around this time, from Tuesday evening through Friday morning," said NASA in a release.
According to NASA, it’s the last in a series of four supermoons. The term "supermoon" was coined by the astrologer Richard Nolle in 1979 and refers to either a new or full Moon that occurs within 90% of perigee, its closest approach to Earth in a given orbit. Under this definition, in a typical year there can be three or four full supermoons in a row and three or four new supermoons in a row. For 2020, the four full Moons from February through May meet this 90% threshold.