New Delhi, June 21 (): The full moon that occurs on June 23, 2013 will be a special one as it will be the largest full moon of the year and also the closest encounter with earth in a long time.
The closest approach of the Moon to the Earth on its elliptical orbit will result in the largest apparent size on full moon day called “Super Moon”. It will be the closest “Super Moon” of the year with moon being closest to Earth in its orbit, also known as perigee.
The word perigee means the moon’s closest point to Earth for a given month. A full moon at perigee is up to 14% larger and 30% brighter than one at its furthest point. The Super Moon will light up the sky this Saturday night into Sunday morning, June 22–23. The moon will be closest to Earth at 6:32 a.m CDT on June 23. June 23 full Moon occurs just 20 minutes after perigee.
Last month’s full moon on May 24-25 was also a Supermoon but the Supermoon on June 23rd full moon will be even more super.
The Moon’s distance from earth varies approximately from 357,000 km to 406,000 km due to its elliptical orbit. The full Moon on June 23 will occur when the Moon is just a hair under 357,000 km. The Supermoon phenomenon may also be associated with high risk of events such as earthquakes and volcanic eruptions. At lunar perigee the tidal force is somewhat stronger. Some people even believed that the big 2011 earthquake in Japan was caused by the Supermoon.