HR diagram showing the position of U Oph components. Literature solutions are shown with grey symbols, where circles, squares, diamonds, and triangles correspond to columns in Table 5 respectively. The solution obtained in this study is shown with blue symbols and error bars. Black lines show MIST evolutionary tracks and isochrones for Z = 0.014. Solar composition was also adopted during spectral synthesis. The dynamical masses corresponding to each point are indicated as text labels.