coincides with the moon's closest approach to Earth in its elliptical orbit, a point called perigee. When this happens, the moon appears larger and brighter than a full moon. The term "supermoon ...

The Moon takes about 27.32 days to orbit Earth. During its orbit, the moon passes through two points: Perigee and apogee. Perigee is about 30,000 miles closer to Earth than apogee. A supermoon can ...

On Sunday (Jan. 12), the Red Planet will make its close approach of Earth at 8:32 a.m. EST (13:32 GMT). This event, known as perigee, causes Mars to appear bigger and brighter in the sky than usual, ...

called the apogee, and therefore appears slightly smaller in the sky. This is the opposite to when the Moon is at its closest - the perigee - on its elliptical orbit around Earth, which gives us ...