Perigee Moon, Apogee Moon . ... Credit Copyright: Galileo Project , NASA Explanation: Tonight, those blessed with clear skies can enjoy a glorious full moon , the last full moon of the "Y1.9K"s. In fact, tonight's moon will be a full-perigee-solstice moon, reaching its full phase and perigee (the closest point in its orbit ) on the solstice , the first day of northern hemisphere winter . ... Mostly because the moon appears bigger and brighter at perigee. ... U. Based on Astronomy Picture Of the Day ...