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How often does a blue moon occur yahoo dating

When that happens, there will...

Top headlines and a preview of the day ahead delivered to your inbox every weekday by 6: Despite the name, the color of the moon will not change. This full moon is special because it's the second one to occur this month — that's what a "blue moon" is. The first full moon happened on July 2.

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The next blue moon won't come until January 2, The reason we have blue moons in the first place is because the length of a calendar month on Earth is not equal to a lunar month — the time elapsed between when we see one phase of the moon repeated like the time between two full moons or two new moons. A lunar month is about 29 days long whereas most of our months on Earth are 30 or 31 days long. That's why the full moon doesn't happen on the same date every month and why we sometimes see an overlap in the number of full moons within the span of a single month.

In theory, we can see a blue moon during any month of the year except February — even on a leap year — according to Larry Ciupik, an astronomy at the Adler Planetarium who spoke with NBC about Blue Moons. The term has changed over the years, so if you thought blue moon meant something other than How often does a blue moon occur yahoo dating second full moon in a month, you're not imagining things.

The month of July will...

It used to refer to the fourth moon in a single season. Either way you slice it, a blue moon is an uncommon anomaly in our night sky.

What Is a Blue Moon?

You don't have to do anything special to see tonight's blue moon. Just look up and enjoy the view.

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