We report on the discovery of a substellar companion or a massive Jupiter orbiting the G5V star HD 16760 with the spectrograph SOPHIE installed on the OHP 1.93-m telescope .
Characteristics and performances of the spectrograph are presented , as well as the SOPHIE exoplanet consortium program .
With a minimum mass of 14.3 \mathrm { M } _ { Jup } , an orbital period of 465 days and an eccentricity of 0.067 , HD 16760b seems to be located just at the end of the mass distribution of giant planets , close to planet/brown-dwarf transition .
Its quite circular orbit supports a formation in a gaseous protoplanetary disk .