Decan
Decan: Dividing each sign into three 10-degree segments. Each decan is ruled by a different planet, explaining differences between people of the same sign.
Related Terms
Modalities
The threefold classification of signs by seasonal position: Cardinal (initiating), Fixed (sustaining), Mutable (adapting). Each element group contains three signs.
Cusp
The transition point where one sign ends and another begins. People born in the cusp zone may carry characteristics of both signs.
Elements
The four fundamental energy groups dividing the zodiac: Fire (Aries, Leo, Sagittarius), Earth (Taurus, Virgo, Capricorn), Air (Gemini, Libra, Aquarius), Water (Cancer, Scorpio, Pisces).
Ruling Planet
The natural ruler of each sign. For example, Mars rules Aries, Venus rules Taurus. The ruling planet's chart position strengthens that sign's energy.
Descendant
The sign opposite the Ascendant at the cusp of the 7th House. Represents the qualities you seek in partners and relationships.
Exaltation
The sign where a planet expresses itself most powerfully and harmoniously. For example, the Sun is exalted in Aries, the Moon is exalted in Taurus.