A demon, also known as Ketuvan. He was born to Kashyapa and Danu. Seen as a planet, he had 33 brothers, most importantly Viprachitti, Shambara, Namuchi, Paloma, Asiloma, Keshi, Durjaya, Ayashiras, Ashwashiras, Ashwa, Shanku, Mahabala, Garga, Murdha, Vegavan, Manavan, Swarbhanu, Ashwapati, Vrikshaparva, Ajaka, Ashwagreeva, Sukshma, Tuhunda, Ekapat, Ekachakra, Virupaksha, Harahara, Nikumbha, Kapada, Sharabha, Shalabha, Surya, Chandratamas as per Mahabharata Adiparva Chapter 65. But Ketu was more attached to Kashyapa’s son from Simhika – Rahu. These two have always been considered unlucky planets. As per Agnipurana Chapter 51, Rahu wears the half moon and Ketu has a sword and a lamp in his hands. The Panchala warrior Amitauja was considered an incarnation of Ketu as per Mahabharata Adiparva Chapter 67 verse 11.