In the present paper we consider the possibility of observationally constraining Hořava gravity at the scale of the Solar System , by considering the classical tests of general relativity ( perihelion precession of the planet Mercury , deflection of light by the Sun and the radar echo delay ) for the spherically symmetric black hole Kehagias-Sfetsos solution of Hořava-Lifshitz gravity .
All these gravitational effects can be fully explained in the framework of the vacuum solution of Hořava gravity .
Moreover , the study of the classical general relativistic tests also constrain the free parameter of the solution .
From the analysis of the perihelion precession of the planet Mercury we obtain for the free parameter \omega of the Kehagias-Sfetsos solution the constraint \omega \geq 3.212 \times 10 ^ { -26 } { cm } ^ { -2 } , the deflection of light by the Sun gives \omega \geq 4.589 \times 10 ^ { -26 } { cm } ^ { -2 } , while the radar echo delay observations can be explained if the value of \omega satisfies the constraint \omega \geq 9.179 \times 10 ^ { -26 } { cm } ^ { -2 } .