The visually close binary system HD375; Is it a sub-giant binary?

Physics Department, Yarmouk University, P.O.B. 566 Irbid, 21163 Jordan(Dated: November 25, 2013; Received , 2013; Revised)Atmospheric modeling is used to build synthetic spectral energy distributions (SEDs) for theindividual components of the speckle interferometric binary system HD375. These synthetic SEDsare combined together for the entire system and compared with its observational SED in an iteratedprocedure to achieve the best fit. Kurucz blanketed models with the measurements of magnitudedifferences were used to build these SED’s. The input physical elements for building these bestfitted synthetic SEDs represent adequately enough the elements of the system. These elements are:T