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The mass parameters of compact objects such as Boson Stars, Schwarzschild,Reissner Nordstrom and Kerr black holes are computed in terms of the measurableredshift-blueshift (zred, zblue) of photons emitted by particles moving alongcircular geodesics around these objects and the radius of their orbits. Wefound bounds for the values of (zred, zblue) that may be observed. For the caseof Kerr black hole, recent observational estimates of SrgA\* mass and rotationparameter are employed to determine the corresponding values of these red-blueshifts.

Obtaining mass parameters of compact objects from red-blue shifts emitted by geodesic particles around them