Expected asteroseismic performances with the space project PLATO

The PLATO (PLAnetary Transits and Oscillations of star) space project will observe about fifty percents of the sky with the main purpose of detecting, confirming and characterizing transiting exoplanets of (super)Earth sizes in the habitable zone of solar-like stars. Determining masses, radii and ages of exoplanets require the knowledge the masses, radii and ages of the host stars. We give a brief presentation of the main features of the mission. We then discuss some expected seismic performances of PLATO for characterizing bright solar-like stars, focusing on the challenging determination of accurate/precise stellar ages.