The second full moon of a month is known as a blue moon. According to Yahoo News, blue moon will be visible in the United States, Canada, Europe, South America and Africa. For partygoers in Australia and Asia, the full moon does not show up until , making January a blue moon month for them." Yahoo News the Eastern Hemisphere can celebrate with a partial on New Year's Eve when part of the moon enters the Earth's shadow. The eclipse will not be visible in the Americas."
So, enjoy the celebration tonight and, if the skies are clear where you are, head outside for a minute and take a look at the blue moon that ushers out 2009.