The UV spectrum of a stellar population that experienced a single burst as it ages (Leitherer et al. 1999), compared with the observed spectrum of PKS 0529-549 (grey line; this work) over the spectral region, 1200–1750 Å. We highlight in yellow the spectral regions of containing possible photospheric signatures of young stars and stellar wind features. The times since the initial burst of individual spectral models are indicated in the legend on the top. The spectrum is normalized to the continuum and heavily smoothed for easier visualization.