  We numerically examine the exterior solution of spherically symmetric and
static configuration in scalar-tensor theories by using the nonminimally
coupled scalar field with zero potential as our sample model. Our main purpose
in this work is to fit the resulting data of the numerical solutions in the
interested region by seeking for approximate analytical expressions which are
weakly dependent of the parameters of a model, such as the nonminimal coupling
constant in the present case. To this end, we determine the main forms of the
mass and the metric functions in terms of the scalar field and their surface
values. Then, we provide a function for the scalar field that contains only the
mass and the radius of the configuration together with the surface and the
asymptotic values of the scalar field. Therefore, we show that the exterior
solution can be expressed in a form which does not depend on the parameters of
a chosen model up to an order of accuracy around $10^{-5}$.
