The Sun Eater
The Multi-eyed Serpent
Rahu is recognized by as an astrological deity by many different religions, Buddhist, Hindu and Tibetan being among them. It is a celestial deity that is most often tied to Ketu which is considered to be a shadow planet. One of the most interesting tales depicts the serpent deity Rahu (the sun eater) swallowing the sun and causing what we know as an eclipse.
For more reading on Rahu and Ketu: