Free Self-Discovery Tool
Free antiscia calculator: find your antiscion shadow points and the hidden conjunctions and oppositions in your birth chart mirrored across the solstice axis.
Antiscia are built on a simple symmetry: the axis from 0° Cancer to 0° Capricorn, where the Sun turns at the solstices. A planet's antiscion is its mirror image across that line — the degree that receives the same amount of daylight. Two planets standing an equal distance from the axis are said to be antiscia, and they behave as if quietly conjunct even when no ordinary aspect connects them.
The antiscion mirrors a planet across the solstice axis and reads like a hidden conjunction — a concealed sympathy. The contra-antiscion mirrors across the equinox axis instead (0° Aries to 0° Libra) and reads like a hidden opposition — a concealed tension. Both are exact points, and both are easy to miss because nothing on a standard aspect grid marks them.
This calculator finds your antiscion shadow point for every planet, then checks whether any other planet sits on it within about a degree. A tight antiscia contact often names a connection you have always felt between two parts of yourself but could never trace to a normal aspect — which is exactly what makes the technique worth running once your visible aspects are mapped.
An antiscion is the mirror of a planet across the solstice axis — the 0° Cancer to 0° Capricorn line. Two points are antiscia when they sit an equal distance from that axis; they share a hidden sympathy that the standard aspects do not show.
A contra-antiscion is the mirror across the equinox axis, from 0° Aries to 0° Libra — the point opposite the antiscion. It behaves like a concealed opposition between the two planets involved.
Because two planets can be antiscia without forming any ordinary aspect. The connection is real but invisible on a standard chart, which is why antiscia often explain a link you feel but cannot otherwise account for.