$${M = \frac{v^2 r}{G} \\ = \frac{(5,39 \times 10^5\, \mathrm{m/s})^2(100\, \mathrm{va})(9,46 \times 10^{15}\, \mathrm{m/va})}{6,67 \times 10^{-11}\, \mathrm{N \cdot m^2/kg^2}} \\ = 4,12 \times 10^{39}\, \mathrm{kg} = \underline{\underline{(2,1 \times 10^9)M_{\text{Päike}}}}}$$