7th House Ruler Calculator

The sign on the 7th House cusp determines its ruler. Because the Descendant is opposite the Ascendant, a known Rising sign is enough to identify the opposite sign and its ruling planet. The calculator uses traditional rulership as the primary result and shows Uranus, Neptune, or Pluto as modern co-rulers where relevant.

The next interpretive step requires a full natal chart. Locate the ruling planet by house and sign, then check its close aspects and condition. Those factors explain where the partnership story moves and how the ruler can operate. The lookup alone cannot identify a future spouse or predict whether a relationship will last.

The Ascendant and Descendant form one horizon axis and sit 180 degrees apart. That means the sign opposite the Rising sign contains the Descendant: Aries rises opposite Libra, Taurus opposite Scorpio, Gemini opposite Sagittarius, and so on. The sign relationship is exact even though the degree still matters for aspects and cusp sensitivity.

This shortcut identifies a ruler but not the ruler's natal placement. To continue, you still need the complete chart showing planetary houses, signs, degrees, and aspects. Treat the result as the first line of a reading sequence rather than the final answer.