Distributions of asteroids in the Eunomia (a) and Vesta (b) families with known spin directions and superimposed by the V-shaped bounding lines. The obliquities (prograde or retrograde) are derived from Gaia DR3 photometry (available through the Gaia archive, https://gea.esac.esa.int/archive/) using the methods and equations in C. Lhotka et al. (2013) and J. Ďurech & J. Hanuš (2023).