Grey scale representation of the probability density distribution of the location of 575 Galactic stars in the sHRD. Three empirical borderlines between densely populated regions and empty regions are drawn as black dashed lines (cf. Table 1). The electron scattering Eddington factor (Γ_e) is given on the right ordinate axis. The Γ_e limit for hydrogen-rich composition at log  L/ L_⊙ = 4.6 is represented by a green horizontal line. Overlayed are stellar evolution tracks for non-rotating stars with solar composition: a) Ekström et al. (2012) and, b) Brott et al. (2011). The ZAMS and TAMS positions of the models are connected through orange and purple dashed lines. Red and blue triangles are placed on the tracks separated by 0.1 Myr.