According to the Indian astrology, Planet Rahu
is the imaginary planet which symbolizes the planet of success. Generally it is
referred to as a 'shadow' planet and also the north node of the Moon. After
churned the primeval ocean, Lord Dhanvantri come out with a pot of Nectar. This
Nectar is of Immortality and distributed by the Lord Vishnu among the Gods, but
at the same time celestial serpent demon Rahu joins the gods so he could also
drink the Nectar of Immortality (Amrita). At the same time lord sun and moon saw
it and inform to Lord Vishnu. Instantly Lord Vishnu cut off Rahu's head in a
well rage, but Rahu had already drunk the Nectar and was immortalized. Rahu and
Ketu are the disengaged head and tail of the same demon. This immortal head is
known as Rahu or dragon head.
Planet Rahu is linked with the strengthening of personal power. The gemstone of
Rahu is hessonite. Rahu is causes solar eclipse.