Rahu and Ketu are considered shadow planets that don't have physical forms but exert influence on various aspects of life. The influence of Rahu on different zodiac signs is believed to bring about both positive and negative effects based on their placement in a person's birth chart (horoscope...
Vedic astrology has seven planets, which has physical existence and these are the Sun, Moon, Mars, Mercury, Jupiter, Venus and Saturn. There are two strategic hypothetical points on ecliptic which are also treated as planets and these are Rahu and Ketu respectively the North and South nodes ...