In the beginning, you will notice when you compare a Western and Vedic chart is that the Vedic chart looks very distinct.familiar with the circular shape of a Western chart; the Vedic chart is square. If you are simply with Western astrology, upon attentive examination, the Vedic chart will emerge to have planets adjusted with the wrong sequence.
The primary difference between the two systems is that the Vedic zodiac is Sidereal and the Western is Tropical., the zodiac is adjusted with 27 sequences or settled star groups. Aries, the first sign of the zodiac, coordinate with the first sequence, called Aswini. In the tropical zodiac, the mark in space when the Sun intersects the earth’s equator is the front point of the zodiac or Aries. The earth’s equator shifts back through the signs of the zodiac at the standard of about 51″ of longitude per year. This is termed as “precession of the equinoxes.”
Because of this circumstance, the analytical Aries of the western zodiac bunch further and further from the Aries used by Vedic astrologers — at the standard of about 1 degree every 72 years.(Western), and the Vedic Aries were on a similar zodiacal plane around 285 AD. Because of the primary of the equinoxes, at present, there is relatively a 24-degree difference. Thus all of the planets in a Vedic horoscope, along with the rising sign, will be about 24 zodiacal degrees earlier than they would be in a Western chart.