Fig. 4
Star counts in Gaia EDR3 (left), GOG20 (middle), and relative difference (right) in the magnitude range of 17 < G < 18. A relative difference, (EDR3-GOG20)/EDR3, of − 1 (resp. +1) corresponds to an excess (resp. a deficit) of 100% in the GOG20 model with regard to Gaia EDR3 data. The colour scale is logarithmic in the left and middle panels, and linear in the right panel. The healpix level is 4.
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