... ones: H2, C2, C3 Diffuse interstellar bands (known since 1922) Unidentified; Proposed carriers: carbon chains, PAHs, fulleranes Radial velocity of CH+ can be different than those of other species 1.6 RbI 7800A*3 CN 3875A Relative intensity 1.4 CH 3886A CH 4300A/2 1.2 FeI 3720A CH 3957A 1.0 + CH 4232A HD152932 ESO UVES -60 -30 0 30 60 + Radial velocity Diffuse bands (strong and weak) may be of different origin(s) 5780 5772 5775 5797 HD147165 5795 1.02 Relative ... CH 0.96 DIB? ...