2D histograms of the density of stars in heliocentric Galactic Cartesian (X, Y, Z) projections, as well as the density of stars as a function of distance, for the subset of the ZGR23 catalog used in the reconstruction of our 3D dust map. Panel a: heliocentric Galactic Cartesian-projected histograms. Panel b: number of stars as a function of distance. This panel also shows a linear growth and a quadratic growth with distance for comparison.