Free Antiscia Calculator
Your antiscia table appears automatically alongside your natal chart, each planet mirrored across the solstice axis onto its point of equal daylight length, a hidden contact ancient astrologers read as a shadow influence.How it works ↓
Fill in the details above and compute to see your result here.
Antiscia are mirror points: each planet reflected across the solstice axis (0° Cancer / 0° Capricorn) onto the sign of equal daylight length. Ancient astrologers treated a planet's antiscia as a hidden secondary influence, a "shadow position" capable of forming its own contacts elsewhere in the chart. This calculator plots your natal chart with the antiscia layer toggled on.
Your antiscia table shows automatically
Antiscia positions are calculated and displayed alongside your natal chart without needing to be switched on. You will see the mirror-point table as soon as your chart loads.
Antiscia mirror across the solstice axis
Each planet's antiscia point is its reflection across the solstice axis, 0 degrees Cancer / 0 degrees Capricorn, landing on the degree with equal daylight length. Ancient astrologers treated this reflected point as a hidden secondary position for the planet, capable of making its own contact elsewhere in the chart.
Contra-antiscia mirror the opposite way
Contra-antiscia reflect across the opposite axis, 0 degrees Aries / 0 degrees Libra, instead of the solstice axis. Traditionally, contra-antiscia contacts were read as more challenging or antagonistic than ordinary antiscia contacts.
A mirror contact needs no conventional aspect
Two planets can land on or near each other's antiscia point without forming any standard aspect, no conjunction, square, or trine required. Ancient astrologers still counted this as a real connection between the two planets, operating through the mirror rather than through the usual aspect geometry.
Worth checking even when your standard aspect list shows nothing between two planets, an antiscia or contra-antiscia contact is a separate channel of connection, not a substitute for one that is missing.
Frequently Asked Questions
What is an antiscia point in astrology?
A planet's reflection across the solstice axis (0 degrees Cancer / 0 degrees Capricorn) onto the degree with equal daylight length, read by ancient astrologers as a hidden secondary position for that planet.
What is contra-antiscia?
The mirror across the opposite axis, 0 degrees Aries / 0 degrees Libra, rather than the solstice axis. It is traditionally read as a more challenging or antagonistic reflection than ordinary antiscia.