Bhishma is one of the foremost of the Vasus. It is only by good luck that you are still living. This Shantanu's son by Ganga is a celebrated Vasu,
भीष्मो वसूनामन्यतमो दिष्ट्या जीवसि पुत्रका गाङ्गेयः शान्तनोः पुत्रो वसुरेष महायशाः॥