Physical parameters of neglected southern eclipsing binary IL Lib

This paper presents results from the combined analysis of light curve (from the All Sky Automated Survey) and radial velocity curves (from Nordström et al., 1997) of the eclipsing binary IL Lib. The final solution describes the system as a detached binary. Absolute parameters of this southern detached binary were calculated as follows: M1=1.49±0.12 M⊙, M2=1.31±0.14 M⊙, R1=1.52±0.23 R⊙, R2=1.52±0.23 R⊙, L1=4.99±2.07 L⊙ and L2=3.65±1.55 L⊙. The distance to IL Lib was computed as 103 ± 20 pc using the distance modulus with corrections for interstellar extinction. The positions of the components of IL Lib in the HR diagram are also discussed.