Eclipse
Definition
An eclipse is the astronomical event where the Moon, Earth, and Sun align closely enough for one body to cast a shadow across another. There are two basic kinds: a solar eclipse, in which the Moon stands between the Sun and Earth at a new moon, and a lunar eclipse, in which Earth stands between the Sun and Moon at a full moon. Astrology reads them as syzygies sharpened by the geometry of the lunar nodes.
In context
If an eclipse season lands on the degrees of your natal nodal axis, the chart sketches a wider window of biographical pivot, read as a window, not a verdict. Eclipses arrive in pairs or trios roughly every six months, always on the axis of the lunar nodes and always at a tight syzygy. An eclipse within three degrees of orb on a personal planet carries more weight than one farther off, and it reads like a luminary event with the nodal axis pressed close to the surface.
To go deeper
Eclipse belongs to the family of geometric lunar events: