Supermoons describe Full Moons falling near the celestial satellite’s perigee, the Moon’s closest orbital point to Earth.
A Moon is dubbed “Super” whenever it comes within 224,775 miles (361,740 km) of Earth.
When compared to the Full Moon at Apogee, or farthest distance from Earth, the Moon can appear considerably brighter and larger.
The Moon always reaches its perigee during its 29-day-long lunar cycle but this will fall on a Full Moon every time.
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