Navagraha, the Nine Planetary Gods. The nine planets are collectively known as Navagrahas. The nine planetary gods have a great significance in Vedic astrology. Astrologers claim that Grahas influence the auras (energy bodies) and minds of beings connected to the Earth. Stated below is Navagraha Stotra/Mantra.

Surya (Sun)
japaakusuma sankaashaM kaashy apeyaM mahaaDhyuthima |
thamorima sarvapaapaghanaM praNamaami dhivaakarama ||
I pray to the Sun, the day-maker, destroyer of all sins, the enemy of darkness, of great brilliance, the descendent of Kaashyapa, the one who shines like the japaa flower.

Chandra (Moon)
dhaDhishankha thushaaraabhaM kSheerodhaarnava saMbhavama |
namaami shashinaM somaM shambhormukuta bhooShanama ||
I pray to the Moon who shines coolly like curds or a white shell, who arose from the ocean of milk, who has a hare on him, Soma, who is the ornament of Shiva's hair.

Mangal (Mars)
DharaNee garbha saMbhoothama vidhyuthkaanthi samaprabhama |
kumaaraM shakthihasthaM thaM mangalaM praNamaaMyahama ||
I pray to Mars, born of Earth, who shines with the same brilliance as lightning, the young man who carries a spear.

Budha (Mercury)
priyaangu kalikaashyaamaM rupeNa prathimaM buDhama |
sauMyaM sauMyaguNopethaM thvaM buDhaM praNamaaMyahama ||
I pray to Mercury, dark like the bud of millet, of unequalled beauty, gentle and agreeable.

Guru (Jupiter)
dhevaanaaMcha RishiNaaMcha gurukaanchana sannibhama |
buDhdhir bhoothaM thrilokeshaM thvaM namaami bRihaspathima ||
I pray to Jupiter, the teacher of gods and rishis, intellect incarnate, lord of the three worlds.

Shukra (Venus)
himakundha mRiNaalaabhaM dhaithyaanaaM paramaM guruma |
sarvashaasthra pravakthaaraM bhaargavaM praNamaaMyahama ||
I pray to Venus, the utimate preceptor of demons, promulgator of all learning, he who shines like the fiber of snow-white jasmine.

Shani (Saturn)
neelaanjana samaabhaasaM raviputhraM yamaagrajama |
Chaayaa maarthaaNda saMbhoothaM tvaM namaami shanaishcharam ||
I pray to Saturn, the slow moving, born of Shade and Sun, the elder brother of Yama, the offspring of Sun, he who has the appearance of black collyrium.

Rahu (Dragon's Head)
arDhakaayaM mahaaveerama chandhraadhithya vimarDhanama |
simhikaa garbha saMbhoothaM thvaM raahuM praNamaaMyaham ||
I pray to Rahu, having half a body, of great bravery, the eclipser of the Moon and the Sun, born of Simhikaa.

Ketu (Dragon's Tail)
phalaasha pushpsankaashaM thaarakaagraha masthakama |
raudhraM raudhraathmaka M ghoraM tvam kethuM praNamaaMyaham||
I pray to Ketu, who has the appearance of Palaasha flower, the head of stars and planets, fierce and terrifying.