Corner plot for WASP-35b showing posteriors for two parameters, projected spin-orbit angle λ and projected rotational velocity of the star v sin i_*. The contours show 1, 2 and 3σ deviations from the median. Data in red were obtained during a single transit with HARPS-N and presented in Zak et al. (2025a) while data in black are from two transits with the new PLATOSpec instrument. They show excellent agreement between the derived parameters. Data in blue are a joint fit of both datasets.