Definition
Genethliacal astrology is the branch of astrology concerned with birth charts. Its name comes from a Greek term relating to birth or generation. The practice examines the positions of the planets, Sun, Moon, angles, and other chart factors for a person’s time and place of birth. It is an older term for what is now commonly called natal astrology.
Astrological Meaning
In classical practice, a genethliacal chart was interpreted to explore temperament, circumstances, abilities, relationships, vocation, and broad life themes. Traditional astrologers typically assessed the Ascendant and its ruler, planetary condition, houses, aspects, sect, and other established techniques. Some also used timing methods, such as annual profections or primary directions, to identify periods when natal themes might become more prominent. Interpretation depends on the chart as a whole; no single placement provides a complete judgment.
Why It Matters
Understanding this term helps readers recognize the historical foundations of modern birth-chart interpretation. It also distinguishes astrology centered on an individual’s nativity from branches such as horary, electional, and mundane astrology. Used thoughtfully, genethliacal astrology offers a symbolic framework for reflection rather than a fixed verdict about character or destiny.
Related Encyclopedia Entries
- Traditional Astrology
- Astrological Terminology
- Natal Chart


