Appearance of the γ-ray emission from the Local Bubble at 1809 keV (left), 1332keV (middle), and 511 keV (right) if it were to be observed from outside (here: 200 pc distance). It is evident that ²⁶Al and ⁶⁰Fe γ-ray emission is not co-spatial: the 1809 keV line appears more homogeneous with slight enhancements at the bubble walls compared to the 1332 keV line which shows an edge brightening. Positron annihilation only shows weak structures with bright spots from possible filaments. The thickness of the bubble wall is essentially determining the appearance of the 511 keV with only a weak contrast from inside the bubble towards the bubble walls.