This is not a real moon, but it will be a blue moon, according to NASA
But no, it will not actually be
The best-known definition of a blue moon is to have two full moons in a calendar month – the second of which is called a blue moon
According to NASA
But another way to define a blue moon is as the third full moon in a season with four full moons.
The astronomical spring (in the Northern Hemisphere) runs from the spring equinox on March 20 to the summer solstice on June 21
During that time frame there will be four full moons:
1. March 20 (worm moon)
2. April 19 (pink moon)
3. May 18 (flower moon and blue moon)
4. June 17 (strawberry moon)
Since the strawberry moon comes before the solstice that makes four full moons during the spring.
According to EarthSky astronomers, the last seasonal blue moon was on May 21, 2016.
The moon will hit 100 percent fullness on Saturday afternoon at 4:12 pm.
May's full moon also has several other nicknames.
Native Americans used their own names for each month's full moon, according to the Farmer's Almanac , which first began publishing the names in the 1930s
May's full moon has also been called the moon flower, the moon planting moon and the moon moon
The next blue moon will fall on Halloween in 2020, according to the National Weather Service
There have been moons that have actually appeared blue, but they are rare. One of the best-known examples was in 1883 when the Indonesian volcano Krakatoa erupted, spitting tons of ash high into the atmosphere.
The particles that make up the ash were small enough to scatter the red light and let other shine through , according to NASA – making the moon appear blue
Blue-tinged moons have been spotted for years after the eruption
Blue colored moons have also been spotted more recently after volcanic eruptions – including Mount St. Louis. Helens in the Washington state in 1980. The forest fire can cause the same effect
The moon rose at 6:35 pm. CDT Friday in Birmingham and will set at 5:46 am Saturday. It will rise again at 7:40 pm. Saturday night and set at 6:27 am Sunday. The last moon of the weekend will rise at 8:42 pm Sunday. Click here to see the times in your area