2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/117163The DAO-type white dwarf LS V+4621 is the hydrogen-rich central star of the possible planetary nebula Sh 2-216. We have taken high-resolution, high-S/N ultraviolet spectra with STIS aboard the HST and FUSE in order to constrain its photospheric parameters. A detailed spectral analysis by means of state-of-the-art NLTE model-atmosphere techniques is presented which includes the determination the individual abundances of iron-group elements.6 pages, 4 figures, 15th European Workshop on White DwarfsAstrophysicstext