Foundations of Vedic Astrology: Introduction to Jyotish Theory and Structure

Vedic astrology, known in Sanskrit as Jyotish (the science of light), is one of the oldest continuous astrological traditions in the world, with roots in the Vedanga literature of ancient India. It differs from Western astrology in fundamental ways — using a sidereal rather than tropical zodiac, emphasizing the lunar mansions (nakshatras) alongside the solar signs, and centering the dasha planetary period system as a primary forecasting tool. Understanding these distinctions is essential before any meaningful study of the tradition can begin. By the end of this course you will be able to explain the defining characteristics of Jyotish and how it developed, distinguish the sidereal zodiac from the tropical, describe the system of nakshatras and their significance, identify the key components of a Vedic birth chart, and articulate how the dasha system approaches timing in human life. What you will learn: - The historical and textual foundations of Jyotish: the Vedanga Jyotisha, the Brihat Parashara Hora Shastra, and the major classical authorities - The sidereal zodiac and the ayanamsha: how and why Vedic astrology uses a different starting point for the zodiac than Western traditions - The 27 (or 28) nakshatras: the lunar mansions, their deities, ruling planets, and symbolic qualities - The nine grahas (planets) in Jyotish: the classical seven plus Rahu and Ketu, and their roles in chart interpretation - The twelve rashi (signs) and twelve bhava (houses) and the distinctions between them in Vedic practice - Planetary dignities: exaltation, debilitation, own-sign, and moolatrikona — and why dignity is more emphasized in Jyotish than in many Western systems - An overview of the Vimshottari dasha system: the 120-year cycle of planetary periods and what it is designed to indicate - How Jyotish has evolved and diversified: the major regional and school-based variations within the tradition The course is structured as a progressive sequence of readings, reference tables, and reflection prompts, moving from historical context through conceptual framework to chart structure. Comparison tables help you place Jyotish concepts alongside their Western counterparts to clarify the differences. This course is designed for students who are new to Jyotish or who know Western astrology and want to understand what makes Vedic astrology distinctive. No prior astrological knowledge is required, though some familiarity with the zodiac will be helpful. You will leave with a clear conceptual map of the tradition and the vocabulary needed for deeper study.