Second, it's known as a blue moon because it's actually the second full moon in the month of January.
From late on Wednesday night, when the moon is full, it will slide entirely into the earth's shadow.
So, on Wednesday, you'll have the opportunity to view a "Super Blue Blood Moon", something that hasn't happened since 1866.
The partial eclipse begins at 5:48 a.m. when the moon enters Earth's main shadow, the umbra. Dr. Ciocca says says for us in Kentucky, we will only see a partial eclipse, but if you were to travel further west in the U.S. you would likely see a better show.
"Also, the full moon will be slightly larger than normal given that this is also a supermoon, so astrophotography will be more spectacular than normal". The totality of the eclipse is set to last 77 minutes. The small amount of light that does get around the Earth will pass through the planet's atmosphere and cause the moon to appear to have a red or orangey color to it.
A supermoon lights up the sky when the full moon is at its closest point to Earth in its orbit - which is called the perigee.
So, there you have it: a blood moon, a super moon, and a blue moon all at once.
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On Wednesday, parts of the USA will get to view a very special lunar eclipse.
A blue moon - is the song in your head yet? - is simply the second full moon in the same month.
Explaining the phenomenon, Sidharth said that during the lunar eclipse, the earth comes exactly between the sun and the moon and the earth's shadow falls on the moon.
It will be many years before we see this combination again, so it's not to be missed.
Skywatchers in California, western Canada, Hawaii, Alaska, Australia and eastern Asia should be able to see the entire eclipse, provided the westher remains favourable.
A lunar eclipse happens several times of year, so it's not that uncommon.
Ridley added that unlike the sun in a solar eclipse, the moon doesn't disappear during a lunar eclipse.
The lunar eclipse will be visible before sunrise on Wednesday, Jan. 31.