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Blue Moon (31st October, 2020)

WHY IS IT CALLED BLUE MOON?
The name has got something to do with the phrase 'once in a blue moon'. According to the Nasa, in 1883 an Indonesian volcano named Krakatoa exploded sending plumes of ash clouds into the sky. These clouds contain particles of just the right size to scatter away red light. This caused the Moon to appear blue. A rare event.

Now, we generally see 12 Full Moons in a year -- three every four seasons. However, since each Full Moon is separated by 29.5 days, this means that it takes 354 days for the Moon to complete the 12 full phases. The leftover days of the year keep adding up until once every two -and-a-half years, 13 Full Moons appear in one calendar year. This 'extra' Full Moon is a rare event and so it came to be called a Blue Moon.

SO, WILL THE MOON BE BLUE?
Sorry to disappoint you, but no. The October 31 Blue Moon will mostly likely be bright and white like all Full Moons are. However, like we explained above, a blue-coloured Moon is a possibility but requires certain atmospheric conditions that refract light beams in just the right manner.