Western Astrology is a broad astrological tradition that developed through ancient Mediterranean, Hellenistic, Medieval, Renaissance, and later Western practices. It commonly interprets the Sun, Moon, planets, zodiac signs, houses, aspects, and chart angles as parts of an interconnected symbolic system. Western astrology includes several approaches and applications, including natal astrology, relationship analysis, mundane astrology, horary astrology, and others. Different practitioners may also use different zodiac frameworks and house systems. Zodiacology works within Western astrology while specifically using the Tropical Zodiac and Placidus House System for its Free Natal Chart.