Individual lines of heavy (Z> 56) neutron-capture elements measured in the r-process rich star, fnx_06_019. From top to bottom: La II, Nd II, Eu II, and Dy II. The best fit synthetic spectra used for abundance determination are shown in green, while the synthetic spectra computed only to check agreement with other detected lines of lesser quality are in blue. The synthetic spectra computed without the element of interest, allowing the identification of blends, are in orange.