Co-signficator

Definition

A co-significator, also called a secondary significator, is a planet, point, house, or other chart factor that provides additional information about the person or matter under consideration. It supports the principal significator rather than replacing it. The term is most common in traditional, horary, electional, and natal astrology.

Astrological Meaning

In interpretation, the main significator establishes the central subject, while a co-significator adds context, condition, or nuance. In horary astrology, for example, the Moon commonly helps describe the unfolding situation alongside the ruler of the relevant house. A planet placed in that house may also contribute information, depending on the method being used. In natal work, several factors can jointly signify one theme, such as the ruler of a house, planets within it, and relevant natural significators. Their testimony is weighed according to dignity, aspects, house position, and the chart as a whole.

Why It Matters

Co-significators help astrologers avoid relying too heavily on a single placement. When several relevant factors agree, a theme may deserve greater emphasis; when they differ, the chart may describe complexity, changing circumstances, or competing influences. Identifying the primary and supporting indicators clearly also makes an interpretation more disciplined and reduces the risk of treating every planet as equally important.

Related Encyclopedia Entries

• Traditional Astrology
• Astrological Terminology
• Natal Chart