Comparison between the Planck mean extinction coefficient at log(ρ/[g/cm³]) = −10 from Blue and those from other sources. The green solid line and black dashed line represents Planck mean extinction coefficients from Ferguson et al. (2005, see also their Fig. 12) and Trampedach et al. (2014, the one previously used in the Stagger code), respectively. The blue dash-dotted line is α_Pl computed using Blue, with 250 000 wavelength points between 50 nm and 50 µm. All calculations are based on the AGSS09 solar chemical composition.