Relative errors in star (X axis) and planet (Y axis) radius (left) and mass (right). Grey open circles: all exoplanet candidates in exoplanets.org. Coloured filled symbols: planets with both mass and radius determination (from RV and transits or transit time variations): the symbol colour denotes the stellar host effective temperature, while the symbol size is log-proportional to the planet radius (left) and mass (right). Black star: Gl 486 system. Solid diagonal lines: 1:1 radius (left:) and 2:3 mass (right:) relative error ratios. Only in the right panel, we also plot a dashed diagonal line at the 1:1 mass relative error ratio, which corresponds to microlensing planets.