2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/180105Using models of the SN~IIP 2005cs, we show that detailed spectral analysis can be used to determine reddening and abundances.8 pages, 7 figures. To appear in The Multicoloured Landscape of Compact Objects and their Explosive Progenitors: Theory vs Observations, eds, L. Burderi et al. (New York: AIP)Astrophysicstext