The Core Difference: Sidereal vs Tropical
Vedic astrology uses the sidereal zodiac aligned with fixed stars. Western astrology uses the tropical zodiac tied to seasons. This means your Vedic Sun sign may differ from your Western Sun sign by roughly 23 degrees.
Tools Unique to Vedic Astrology
Vedic Jyotish offers divisional charts (D9 Navamsa, D10 Dashamsa, D60 Shashtiamsa), dasha systems (Vimshottari), nakshatra analysis, and Ashtakoot gun milan for marriage — tools rarely used in Western chart reading.
When to Use Which System
For Indian marriage matching, festival timing, and dasha-based predictions, Vedic astrology is the standard. Western astrology excels at psychological archetypes and transit work in the English-speaking world. Many practitioners use both for different questions.
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