perigee

The Moon has an elliptical orbit and when it is at its closest point to the Earth we say that it is in perigee.

When it is at its closest we call it perigee.

The Moon's orbit around Earth is elliptical which means there are times when it is further away - apogee - and times when it is closer - perigee.

Full supermoons occur when the orbit of the moon is at perigee - the closest point to Earth in its orbit, which makes the Moon appear bigger and brighter in the night sky.

A supermoon occurs when the full Moon coincides with when the moon is at its closest point to earth in its orbit - the perigee.