August 2012 is a month with two full moons. And, by popular acclaim, that means it’s a Blue Moon month – but it’s Blue in name only. That’s because a Blue Moon is sometimes defined as the second full moon in a calendar month. The first full moon is August 1. The second full moon is August 31, 2012.
If you want to find out more about the history of “blue moon” check out http://earthsky.org/astronomy-essentials/when-is-the-next-blue-moon
Hope there is a clear night where you live on Friday to enjoy this special moon.