Navagraha Slokam
(this is a dhyana shlokam for all Navagrahas)

aarogyam pradhathu noh dinakaraha
chandroh yasho nirmalam
bhoodim bhoomisudhaha sudhaam sudhanyaha
pragnyaam gurur gowravam kaanya
komala vaak vilaasa madhulam
mandho mudham sarvadha
raghur bhaahubalam virodha shamanam
ketuhu kulasyonadhim

Let us pray to Lord Surya who bestows well-being and health
Let us pray to Lord Chandra to bestow eminence and recognition
Let us pray to Lord Kuja to bestow opulence and prosperity
Let us pray to Lord Bhudhan to bless us with astuteness and wisdom
Let us pray to Lord Guru for knowledge and good judgment
Let us pray to Lord Shukra for graciousness and enhancement
Let us pray to Lord Shanishwara for harmony and contentment
Let us pray to Lord Rahu for vigour and valour
Let us pray to Lord Ketu for progeny, kith and kin

Surya or Sun is the most powerful living God - whom everyone can see, perceive and pray. Though he is visible, he also has been presented in a variety of forms. Lord of this planet is God Siva

Chandra or Moon is a lovable God - Pleasing to the children as well as elders, universally appealing to everyone whatever may be the religion. Goddess Parvathi rules the planet.

Angaraka or Mars is regarded as a God of martial character, red in every aspect. Even the Romans held him as their Guru. He is the Son of Earth and is ruled by Lord Subramanya.

Budha or Mercury is considered as the greatest among the wise. This Devata bestows wisdom and wealth on his devotees. He is ruled by Lord Maha Vishnu.

Brihaspati is the Guru (Jupiter). He results in a cure from ailments and helps one to ward off his/her sins and gives strength, valour, longevity, etc. He grants the boon of fatherhood to the childless, good education (Vidya). He is ruled by Lord Dakshinamurthy.

Sukra or Venus is the bestower of long life, wealth, happiness, children, property and good education. He is ruled by Goddess Mahalakshmi.

Saniswara or Saturn, is generally known to affect one adversely on occasions when he occupies certain positions in one's horoscope. A prayer to him, especially on Saturdays, is said to mitigate the hardships one will have to face during these periods. Saniswara is considered equally a bestower of all benefits to the devotees who pray sincerely to him. He is ruled by Lord Yama.

Rahu is instrumental in strengthening one's power and converting even an enemy into a friend. He is ruled by Goddess Durga.

Ketu brings prosperity to the devotee's family. He grants good health, wealth, cattle and all around prosperity. He is ruled by Lord Ganesha and Indra.