A son born to Kashyapa and Aditi. kashyapa married Daksha’s daughter Aditi and they ahd ten sons – Brihalbhanu, Chakshuratma, Vibhavasu, Richika, Suvitha, Arka, Bhanu, Ashavaha, Ravi, Vivasvan. vivasvan’s son was Vaivaswatamanu as per Mahabharata Adiparva Chapter 1 verse 42.