F=\FRAC{G{{m}_{1}}{{m}_{2}}}{{{d}^{2}}}\RIGHTARROW G=\frac{F{{d}^{2}}}{{{m}_{1}}{{m}_{2}}}\] \[1\,ly=9.46\times {{10}^{15}}\,meter\] \[[G]=\frac{[ML{{T}^{-2}}][{{L}^{2}}]}{[{{M}^{2}}]}=[{{M}^{-1}}{{L}^{3}}{{T}^{-2}}]\]