Foundations of Western Astrology: Zodiac, Planets, Houses, and Aspects

Western astrology is a remarkably coherent symbolic system with over two thousand years of continuous development. Yet for most people encountering it, the sheer volume of interlocking elements — twelve signs, ten or more planets, twelve houses, multiple aspect types, countless rulerships — makes it hard to know where to start, or how the pieces relate to each other. This course builds the conceptual architecture of the system from the ground up. By the end of this course you will be able to describe the historical development of Western astrology from Hellenistic origins through the medieval and modern periods, explain the structure and logic of the zodiac, identify the key qualities of each planet and its domain, describe how the twelve houses organize areas of life, and understand how aspects define relationships between planets in a chart. What you will learn: - The historical roots of Western astrology in ancient Mesopotamia, Hellenistic Greece, and medieval Islamic scholarship - The twelve zodiac signs: their elements (fire, earth, air, water), modalities (cardinal, fixed, mutable), and core character qualities - The seven classical planets and the outer planets: their mythological associations, astrological domains, and sign rulerships - The twelve astrological houses: what each governs, the significance of house cusps, and the major house systems (Placidus, whole-sign, equal) - The five major aspects — conjunction, opposition, trine, square, sextile — and how orbs are calculated and applied - The Ascendant, Midheaven, and chart angles: why they are considered more personally significant than sun sign alone - How to read the basic structure of a natal chart before interpreting any single placement - A brief comparison of Western astrology with Vedic and Chinese traditions to locate it within a global context The course is organized as a series of structured readings, reference tables, and reflection prompts. Illustrated chart diagrams accompany each conceptual section. Journaling templates invite you to apply each concept to your own birth chart as you learn it, making the material immediately personal. This course is designed for students who are entirely new to astrology or who want to move beyond sun-sign familiarity to a real structural understanding. No prior knowledge of astrology or related traditions is required. You will leave with a coherent mental model of the Western astrological system and the vocabulary for deeper study.