What is the difference between Vedic astrology and Western astrology?
There are two main schools of astrology that use the planets, signs, and houses: Vedic astrology and Western astrology. They are similar, yet different; why is this so and what does it mean? First of all, the Vedic system uses a constellational way to measure the zodiac; that is, it uses the actual constellations in the sky to mark out the signs of the zodiac. Basically it is more astronomically accurate; it is called the sidereal zodiac. The Western system uses the tropical zodiac, which determines the boundaries of the twelve signs by marking out exact thirty degree sections of the sky starting from the vernal equinox; that is, the exact position of the Sun on the first day of spring. Sidereal astrology is constellationally based; tropical (western astrology) is seasonally based. This is not a value judgment on one system being better than the other. You could also say that the Vedic-sidereal system is based on the relationship between the earth and the stars, whereas the Western-tro