Time evolution of the average granule for a viewing angle of 60° both for synthetic data and HMI data. We identify the positions of the granules in one image (Δt = 0) and then compute the average granule from this image and another one three minutes later, using the same positions of the granules. Top row: STAGGER continuum data with full spatial resolution; middle row: STAGGER data convolved with the PSF from Couvidat et al. (2016); bottom row: HMI continuum data (along the equator). Solid blue line: average granule for Δt = 0 and dashed red line: average granule for Δt = 3 min. The vertical lines show the center of gravity of the average granule for Δt = 0 (black line) and Δt = 3 min (red line). The x-axis points away from disk center. The intensity is normalized to values between 0 and 1 for all granules shown here. The error bars are smaller than the symbol size or the thickness of the lines.