Left panel: logarithm of emission measure of the 0.7 keV Galactic emission as observed by eROSITA in the western Galactic hemisphere when fitting the total X-ray emission (diffuse and point sources); it is given in Galactic coordinates and in zenithal equal-area projection centred on (l = 270◦, b = 0◦). The dashed black, red, and blue lines show the longitudinal stripes in Fig. 5. The dot-dashed white contours indicate the region with the highest concentration of stars within 500 pc of the Sun, as shown in Fig. G.1. Right panel: same as left panel, but once the stellar contribution, as described by Hunter et al. (2024), had been removed.