Photogeometric distances from C. A. L. Bailer-Jones et al. (2021) as a function of the inverse parallax of the stars observed by IPS-GI and GPIPS in the regions of C5, C45, and C50. The solid gray line indicates the expected inverse parallax–distance relation. The shaded pink area represents the best fits of subsamples drawn without replacement from the measured data. The solid red line is the average best fit of the subsamples. The gray shaded area is the 2σ confidence intervals.