July 31, 2015, It's "BLUE MOON"

Some Interesting Facts about "BLUE MOON"

If I say, the moon is blue,

Will you believe that it is true?

Yeah! It is...

It’s a full moon on July 31, 2015. Although it will look ordinary, but actually it is extraordinary…!

It’s a blue moon! :D

Wanna catch the true blue moon this Friday? then turn your gaze on the moon at exactly 6:43 a.m. EDT,  for a rare cosmic event that occurs, well, once in a blue moon ;)

 What is a Blue Moon?

 

There are two definitions for a blue moon-

1.     Second full moon in a calendar month

• It is the recent definition for a blue moon
• For a full moon to occur first of the full moons must appear at or near the beginning of the month so that the second will fall within the same month. The average span between two moons is around 29.5 days.

2.     The third full moon in a season that has four full moons

• It is the older definition for a blue moon

• The full Moon in May 2016, will be this type of blue moon 

So here, Celebrate the Blue Moon with these interesting facts about it!

It doesn't appear Blue !

yeah! It’s true…the name ‘blue moon’ has actually nothing to do with COLOR. It can occasionally take on a reddish pallor. Yeah, it can sometimes appear blue because of forest fire or volcanic eruption if they litter the upper atmosphere with ash or smoke.

In fact, any moon can be blue if any event blows a significant amount of ash into the atmosphere. That's because particles from the smoke or ash are about as wide as the wavelength of red light, which means they scatter red light but allow blue light to pass through. The particles act as a blue filter, and earthly observers perceive the moon as blue.

If you blink, you'll miss it !

yeah, it s only for a moment! Although the moon usually looks full one day before and one day after the day of the full moon, there is technically only one moment when the moon is full in the sky.

Occurs roughly once every 2.7 years !

 so, its kind of a rare sight. After this one(31 July 2015) Blue Moon will not occur again until 2018.

Once in a blue moon !

The idiom "once in a Blue Moon" signifies a rare event because scientists had trouble predicting when the distinctive full moon would happen during any given year.