Recently, a rare celestial phenomenon, the supermoon, illuminated the skyline around the world.
About Supermoon:
A supermoon occurs when a full moon or new moon coincides with the perigee or moon’s closest approach to the earth in its elliptical orbit.
Because the moon’s orbit is not a perfect circle, its distance from the earth varies throughout the month by around 50,000 km.
When the moon is near its perigee and also directly opposite the sun, the full moon appears about 14% larger and 30% brighter than when it is at its farthest point.
The term “Supermoon” was coined by astrologer Richard Nolle in 1979, defining it as a special event when a full moon is within 90 percent of its closest point to Earth.
Impact of Supermoon
Supermoons influence the tides, creating perigean spring tides.
These tides are slightly higher and lower than usual because the moon’s stronger gravitational pull acts in concert with that of the sun.
These changes are typically modest, they can exacerbate coastal flooding when combined with storm surges.
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