Abstract

In this work, we present a detailed analysis of the individual components of the visual binary system HIP 102029 (R.A. = 20:40:35.32, Dec. = +15:38:35.63). The system was discovered during the European Space Agency Hipparcos mission and has a separation of 220 mas. The analysis uses the ORBITX code and Al-Wardat’s method to estimate the orbital, atmospheric, and fundamental parameters of the individual components. The positions of the components on the H-R diagram, evolutionary tracks, and isochrones are determined using the estimated parameters. The age of the system is estimated to be 1.415 Gyr with a higher metallicity than the Sun Z=0.030 based on the Gaia BP/RP spectrum. The results show that component A has evolved from the main sequence to the sub-giant stage, while component B has started to evolve off the main sequence. This study provides valuable insights into the properties and evolution of binary star systems, which can contribute to our broader understanding of stellar evolution in the subgiant stage.

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