Ahir Budhnya

Ahir Budhnya is the serpent of the depths of the atmosphere linked with Nakshatra 26. Also known as a dragon of the deep. It is one of the 11 primary Rudras (q.v.) produced by Sage Kashyapa and Surabhi, who was one of the daughters of Daksha Prajapati (q.v.). Ahirbudhanya produced 80 million invincible trident-holding secondary Rudras who were spread in all directions to protect mankind. Along with Ajaikapada, another primary Rudra, he formed the dual principles of light and darkness, heat and cold, and is personified, as Agni while Ajaikapada is Soma. Ajaikapada and Ahirbudhanya preside over Purva and Uttara Bhadrapadas (q.v.), respectively. http://www.aryabhatt.com/astrology%20book/astrologyA2.htm