For the first time in 150 years we will see a 'blue blood Moon

Astronomers are of congratulations (and us also!). Is that on January 31 will take place an event occurring not more than 150 years ago: an eclipse lunar total, which will have an effect called "Moon of blood", will take place at the same time as the call ' Moon Blue».

What is a blue moon?
This term comes from the English (blue moon) and is used to name the second Moon filled within a month. It is a rare phenomenon that only occurs every two years and a half approximately. Not for nothing this language coined the phrase 'once in a blue moon' to refer to something that happens every much, but long.

However, it is even rarer that this event coincides with an eclipse: the last record that is of a similar event dates from March 31, 1866, 152 years ago.

Why called it is "Moon of blood"?
This phenomenon is directly related to the lunar eclipse of January 31, will only be visible in the West of North America. During the event, the Earth will be positioned between the Moon and the Sun, and not to receive the Sun's rays, the satellite will take between Orange and reddish coloration.

Without a doubt, it is a singular event in astronomy. But the 2018 is only beginning and holds us more phenomena of this type, including other Blue Moon , which will occur on March 31.

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