  Atmospheric modeling is used to build synthetic spectral energy distributions
(SEDs) for the individual components of the speckle interferometric binary
system HD375. These synthetic SEDs are combined together for the entire system
and compared with its observational SED in an iterated procedure to achieve the
best fit. Kurucz blanketed models with the measurements of magnitude
differences were used to build these SED's. The input physical elements for
building these best fitted synthetic SEDs represent adequately enough the
elements of the system. These elements are: $T_{\rm eff}^{a} =6100\pm50$\,K,
$T_{\rm eff}^{b} =5940\pm50$\,K, log $g_{a}=4.01\pm0.10$, log
$g_{b}=3.98\pm0.10$, $R_a=1.93\pm0.20 R_\odot$, $R_b=1.83\pm0.20 R_\odot$
$M_{v}^{\rm a}=3.26\pm0.40$, $M_{v}^{\rm b}=3.51\pm0.50$, $L_a= 4.63\pm0.80
L_\odot$ and $ L_b= 3.74\pm0.70 L_\odot$ depending on new estimated parallax
$\pi=12.02 \pm 0.60$ mas. A modified orbit of the system is built and compared
with earlier orbits and the masses of the two components are calculated as $M_a
=1.35M_{\odot}$ and $M_b=1.25M_{\odot}$. Depending on the estimated physical
and geometrical elements of the system, which are assured by synthetic
photometry, we suggest that the two components are evolved subgiant (F8.5 IV &
G0 IV) stars with age of 3.5 Gy formed by fragmentation.
