Abstract
This study is focused on the photometric solution of stars of the G2V spectral type. Photometric solutions light curve analysis in V-band were applied to the sun-like star (BG Vul) located in the ASAS catalog. The light curve of BG Vul showed variation in W UMa (EW/KW) type. Absolute parameters very close to the astrophysical fundamental values of the sun were obtained as a result of the solution. Period variation of the sun-like BG Vul variable star selected from the solar analog star list of Tanriver (2012, 2013) was performed. We conducted an unspotted solution for the BG Vul binary system. The masses of the primary and secondary components for BG Vul were M1=1.017M⊙ and M2=0.895M⊙, respectively, while the radius for the primary was R1=1.238 R⊙, and R2=1.176 R⊙ for the secondary. The temperatures of the primary and secondary were T1=5868K and T2=5520K, respectively. We revealed that BG Vul is most likely a member of the A-type subclass of W UMa binaries.
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