From Hindupedia, the Hindu Encyclopedia

Sani (Slowly-moving one), aka Sanaischara (One who moves slowly) aka Saneeswara (The god who is slow) is the planet Saturn among the nine planets. His other epithets include, Chhayatmaja (Son of Chhaya), Saura or Sauri (Son of Surya), Ara, Kona, and Kroda. He is the son of Surya and Chhaya and is the only planet with the epithet Iswara (god.) He takes 30 years to make a full round of the Sun and so he becomes the slowest among the planets. He was made lame by his half brother Yama. He is the indicator of longevity, diseases, death, base actions, reason for death, danger, slave hood and cattle wealth in a person's horoscope.

Astrological affiliation

He is described as one with very hard hair, of black colour, phlegmatic, one with thick teeth, one having red eyes, one with base character, slow witted, lazy and well proportioned. He is the owner of Makara and Kumbha rasi of the horoscope, powerless in mesha rasi and extremely powerful in Thula rasi. Shukra (Venus) and Budha (Mercury) are his friends, Jupiter equal, sun, moon, and Kuja (Mars) are his enemies.

He is also referred as Manda, Kona, Bhaskari, Arki and Suryputhra in astrological literature. He takes 30 months for moving from one rasi to another. He gives rise to bad effects when he is standing in the Chandra rasi, rasi before it and rasi after it. This period is called Sade Sathi in Hindi and Ezharai nattu sani in Tamil. Even in this seven and half year period, the period when it is with Chandra is the worst one. In a person's life, there is a possibility of this seven and half period coming thrice, the first called mangu sani, the second called pongu sani and the third called marano (pokku) sani. Another very bad period is when Sani lives in the 8th house from moon. The mental confusion it causes may even make one mad. Other Rasis where is bad are 4th., 5th., 7th., 9th and 10th rasi from the moon. This would mean that he does good only for 5 years during his one full round of 30 years. To please sani it is necessary either to pray him, or his friend Hanuman or Lord Iyappa of Sabari malai or to light gingelly lamps in front of him on Saturdays or to give a copper pot full of gingelly oil as dhana to a Brahmin after seeing once own image in that oil.

See also