Navagrahas:

Navagrahas fall under the the Hindu Astronomy and play a major part in the Hindu astronomical sphere. The Hindu astronomy whose origin dates back to the time of Vedas is concerned with the placement of nine planets and their influence on the world and on an individual. According to the Hindu astrology, the position of the planets when a person is born determines his potential in life. The nine planets collectively are called Navagrahas. These 9 planets are worshipped by Hindus to overcome any hindrance, obstacle or bad luck. They are found mostly in all the temples and faithful believers pray to the Navagrahas before they pray to any other deity.