This Vedic Astrology chart calculator uses Tropical Rasis with Sidereal Nakshatras as per the research of Ernst Wilhelm. Ernst Wilhelm studied contradictory statements in old Sanskrit texts that revealed Ancient Vedic Astrologers between 0-600 AD had lost the knowledge of precession. As a result, they introduced errors into their astronomical calculations. Upon discovering this, he spent two solid years testing every Vedic Astrology technique he knew (about five times more techniques than the best professional astrologers use in their daily practice) and all of them tested out better with the calculations that this chart calculator uses. For more information about the Sutras and ideas found in the ancient Sanskrit astronomical texts which lead to Ernst Wilhelm’s discoveries, please visit Ayanamsa and Rasis.
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Or check out these downloadable astrology reports based on these calculations.