Semi-amplitude of RV (square), BIS (circle), and photometry (green triangle) as a function of the inclination of the star with the line of sight i. Two different vsini at 3 and 7 km s^-1 (filled and empty markers) are drawn. The photometry does not depend on vsini. All other parameters are fixed (cf. text). The dashed lines correspond to a cos(i)² fit.