Light curve analysis for the two eclipsing binary stars EM Cet and EL Cen

We present the first light curve analysis of the two eccentric eclipsing binary stars EM Cet and EL Cen by using the PHOEBE Code.The selected stars were taken from the Peremennye Zvezdy Prilozhenie supplement (PZP).Both were observed by the All Sky Automated Survey (ASAS) in the V band.Another light curve for EM Cet was observed via the Transiting Exoplanet Satellite (TESS).From the TESS observations we determined 4 new minima times.Orbital and physical parameters were determined.The analysis showed that the two targets confirming the concept of orbital circularization theories that stars with lower eccentricities are with later spectral types.A comparison between the results obtained from the two light curves of ASAS and TESS for EM Cet has been investigated.