  A fluctuation-dissipation relation for perturbed configuration of a
relativistic star is obtained. The stochastic fluctuations of the classical
stress tensor comprising the matter content ( a perfect fluid) of the
relativistic star, act as the source in a classical Einstien-Langevin equation
describing the system. We discuss the linear response of these fluctuations of
the stress tensor and develop a fluctuation-dissipation relation from the first
principles. Thus a system-bath separation in terms of spacetime metric and
matter content is proposed, to study equilibrium and non equilibrium
statistical properties for a relativistic star. This is not derived from or
related to the scalar fields or quantum stress tensors and their fluctuations,
as is usually the case for semiclassical stochastic gravity.
