From the Greek, literally 'opposite shadows', the antiscion
of a planet is its zodiac degree mirrored across the solstice points of the
Cancer-Capricorn axis (so, a planet at 5˚ Capricorn has its antiscion at 25˚ Sagittarius).
This mirroring ties the planets into a relationship based on the fact that at
both points the length of day and night will be equal. Generally, the antiscion
of a planet is considered to be a favourable point, whereas the
contra-antiscion is not viewed as detrimental.