In astrology, the Descendant (often abbreviated as DC) is one of the four principal angles of the astrological chart. It marks the cusp of the 7th house, which is associated with relationships, partnerships, and interactions with others. Key Aspects of the Descendant (DC): In summary, the Descendant (DC) in astrology is a key point that reveals information about one’s relationships, partnerships, and how they interact with others. It provides insight into the qualities one seeks in others and how these interactions influence their personal life.