What principles Vedic astrology is based on, how it differs from Western astrology?
The main difference is that calculations in Vedic astrology are based on the Moon’s position, and Western are based on the Sun’s position. The Moon changes its position every two and a half days, the Sun changes Zodiac sign once in a month. Vedic system is more detailed and exact in predictions. In Westren astronomy there are also nine planets, instead of Rahu and Ketu they have Pluto and Neptune. But it is not the same. Rahu and Ketu move on both sides of the Moon, they are not as distant as Pluto, Neptune or Uranus. These plantes have no physical analogues, they are like shadows. They can shape any form getting into other planets. When the Moon passes around the Sun and goes through Rahu’s position we have Lunar eclipse and Solar eclipse when it goes through Ketu’s position. They have different effect depending on the planet they influence on, what “house” they are in, speaking the language of the astrological chart. If one of them is in good position, the other will always be in bad
