I thought some of you might have seen this.

The alignment of three celestial objects within a solar system (or within
any other system of objects in orbit about a star). Syzygy is most often
used to refer to the alignment of the Sun, Earth, and Moon at the time of
new or full moon. Alignments need not be perfect in order for syzygy to
occur: because the orbital planes for any three bodies in the solar system
rarely coincide, the geometric centers of three objects that are in syzygy
almost never lie along the same line. .

In general, syzygy occurs whenever an observer on one of the three objects
would see the other two objects either in opposition or in conjunction.
Opposition occurs when two objects appear 180° apart in the sky as viewed
from a third object. Conjunction occurs when two objects appear near one
another in the sky as seen from a third object.

Solar and lunar eclipses are dramatic results of syzygy. During a solar
eclipse, when the Moon is in its new phase, the alignment of the Sun, Earth,
and Moon is so nearly perfect that the Moon's shadow falls on the Earth.
During a lunar eclipse, which occurs at the time of the full moon, the Moon
passes through the Earth's shadow.

An occultation is another type of eclipse that can occur during syzygy. For
an Earth-based observer, an occultation occurs when the Moon is seen to pass
in front of a planet or other member of the solar system. The occultation of
a star by the Moon does not qualify as syzygy, since the star is far beyond
the limits of the solar system.