Pratyusha and Prabhasa. These are known to be the eight Vasus. Dhara and the Brahmaknowing Dhruva were born of Dhumra.
प्रत्यूषश्च प्रभासश्च वसवोऽष्टौ प्रकीर्तिताः। धूम्रायास्तु धरः पुत्रो ब्रह्मविद्यो ध्रुवस्तथा॥