Supermoons are normally occurring celestial events which take place several times a year. This is when the moon is closest to Earth during full or new moon phases, at or near perigee. The year 2013 has five supermoons, three of which are during full moon phases. New moon phase supermoons are not visible, but all supermoons still effect the ocean tides, especially during high tides. The last full moon phase which can meet the requirement of a perigee supermoon was on March19, 2011. The next one will be the full moon on May 24th and 25th, sometimes called the Flower Moon in native American folklore. At that time the moon will be within 90% of it’s closest distance to Earth, not exactly a true perigee full moon but meeting the requirement of a supermoon. On June 23rd, the full moon will be at true perigee, it’s actual closest distance of 356,991 kilometers. This is called a super supermoon.
The June full moon is often referred to as the Strawberry Moon, but is mostly known for romantic appeal in poetry and song.
During supermoons, the visual aspect of the moon is clearly noticeable, being a much larger full moon. Tides can also be expected to be higher. The June 2013 perigee supermoon should be a memorable one, as well as the May supermoon.