Moon en Supermoon To Dominate Weekend Sky The largest full moon of the year will grace the night sky Sunday as our nearest neighbor in space makes its closest approach.<p>The moon will reach its closest perigee of 2013, dominating the sky. For about a half-hour of the event, the moon will also turn full — a confluence of events that produces a so-called supermoon. The full moon on Sunday will appear to be 14 percent to 30 percent brighter than it does when it's at the other end of its orbit, known as apogee. Fri, 21 Jun 2013 19:12:29 +0000 Scott Neuman 32362 at Supermoon To Dominate Weekend Sky