A total lunar eclipse will be visible in Alberta Wednesday

Image NASA

Image NASA

It truly is a celestial triple threat! The last time all three took place together was on March 31, 1866. That's when the moon slides into the earth's shadow.

It tweeted yesterday: "What do you get when you have a supermoon, which also happens to be the 2nd full Moon of the month, passing through Earth's shadow during a total lunar eclipse?".

Canadians in the West will find out early Wednesday, when an extremely rare alignment in the lunar calendar produces what astronomers call a super blue blood moon. The eclipse will be harder to see in the lightening pre-dawn sky, and the Moon will set after 7:00 a.m.as the Sun rises. So it's not going to be as bright.

The sun emits all colors of light, making it appear white.

This moon is pretty blue and super.

It'll be a long wait for skywatchers in the USA as Johnston predicts the next visible lunar eclipse will be on January 21, 2019.

A blue moon seen in the night skyWhat is the difference between a supermoon and a blue moon?

A lunar eclipse happens several times of year, so it's not that uncommon.

This so-called "super blue blood moon" sounds like a big deal.

These occur when the full moon is facing the earth on a specific side that's wider.

The term blood moon isn't a scientific term but one coined colloquially.

Blue moons take place around twice in two and a half years.

What is a blue moon?

By about 6.15am CST the earth's reddish shadow will be clearly noticeable on the moon.

To do this, NASA's Lunar Reconnaissance Orbiter will attempt to map temperatures as the moon slips into the shadows.

This is when it will start to appear reddish-orange. Hasan Al Hariri, CEO of Dubai Astronomy Group has stated that to observe this awesome opportunity people are advised to go to a high point or finding an unobstructed area with free sight to east-northeast for the best view of the eclipse. January 31 will be our next full moon in the lunar cycle.

Before people knew the reason for this, people feared a blood moon, seeing it as an act of God.

Since the moon will set low over the western horizon, likely tucked behind trees, buildings and hills, said Andrew Fraknoi, a retired professor of astronomy at Foothill College in Los Altos Hills.

The longer span, Fraknoi noted, also means people have a better chance of seeing the eclipse if clouds are threatening. And so far, the forecasts look promising.

Look up into the sky on Wednesday evening for the answer.

You are going to need a heavy jacket, though.

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