On the night of 1st August full moon reigns unusual. Blue Moon will rise. This is the name of our natural satellite, earned for its romantic color. The value of the phenomenon of “Blue Moon” is connected with the optical characteristics of this natural phenomenon. The very same phenomenon got its name from the English expression «Once in a Blue Moon» (ie – “rarely or never consider”). This “extra” full moon happened the last time in August 2012. However, the most striking phenomenon took place nearly 130 years ago, when the moon was blue-green all over the world for two years as a result of the volcanic eruption of Krakatoa.
The concept of “blue moon” does not imply a change of color Earth satellite. It is derived from the English idiomatic expression “once in a blue moon», which means “very seldom, almost never,” RIA “Novosti».
Muscovites and residents of suburbs will see tonight in the sky “Blue Moon “. This title is the 13th full moon of the year, with the heavenly body is the most common color.
In this July, the full moon occurs the second time. The fact that one cycle of the Earth’s satellite lasts less than a month, so in nearly three years accumulating time for another full moon.
The astronomers explain it this way: the time between two full moons 29.53 days, which is slightly shorter than the average duration of the month, so for the calendar year 2.7154 accumulate additional full moon, once again recalling that the year may be 13 full moons instead of the usual twelve.
The name of this phenomenon given by the English expression Once in a Blue Moon, which means “rarely or never”. The last time the “Blue Moon” rises in August of 2012, and the next will be in January 18th, reports Tass.
Weather forecasters promise partly cloudy today in the Moscow region, so that we can be a good look at the moon.
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