From the Greek, literally shadows on the other side, opposite shadows; mirror or reflection points. A degree and its antiscion are equidistant from a particular reference point such as the MC-IC or summer-winter solstice axis. The use of antiscia is common to Uranian Astrology.

This is the mirror image of planetary positions about the Cancer/Capricorn axis. Example: The antiscion of a planet at 2 degrees Cancer is at 28 degrees Gemini. The antiscion point can be activated when occupied by another natal planet, by transit, direction, or progressed planet.

A degree and its antiscion are equidistant from a particular reference point such as the MC-IC or summer-winter solstice axis and are called antiscia.