Sentences with phrase «perigee syzygy»

Also known as a perigean full moon or perigee syzygy, a supermoon happens when the moon is full at its closest point in its not - quite - circular orbit around Earth.

Not exact matches

This period ensures a close alignment between lunar perigee and solar / lunar syzygy (i.e. New or Full Moon).

The first period is the time required for the syzygies of the Earth / Moon / Sun (i.e. the Lunar Synodic month) to realign with the closest lunar perigees.

It also involves a close agreement between the lunar perigee / syzygy and BOTH the perihelion of the Earth's orbit and the time of passage of the Moon through one of its nodes.