Top panels: H₂ column density distribution after 10⁴ yr of constant mass loss for the model described in the text. The column density is integrated over all velocities. The right panel corresponds to a polar view of the CSE (line of sight perpendicular to the orbital plane) and the left panel to a view from the orbital plane. Bottom panels: H₂ volume density in the plane of the sky for the same views. The figure corresponds to the last frame of a video showing the time growth of the CSE (online).