The term detriment is used in astrology to refer to the sign of the zodiac that is opposite to a planet’s domicile.

When a planet is in the sign that is opposite to its own domicile, it is said to be in its detriment.

Traditional sources consider a planet being in its detriment to be a debilitating factor.

In traditional astrology, each planet has its detriment in the following signs:

Mars – Taurus and Libra

Venus – Aries and Scorpio

Mercury – Sagittarius and Pisces

Moon – Capricorn

Sun – Aquarius

Jupiter – Gemini and Virgo

Saturn – Cancer and Leo