Apr 24, 2012; 6:00 AM ET
Blog authored by AccuWeather Astronomy expert on Facebook, Daniel Vogler.
On May 6, 2012 we will have the closest lunar perigee of the year to coincide with a full moon, known as an Extreme Super Moon. What is a Super Moon you ask? It's when the moon gets to its closest point to Earth coinciding with a syzygy within 90% or greater of its mean perigee. To calculate this, we need some numbers. We can either use this years numbers or an easier route would to use average mean perigee and apogee distances. But why do that?
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