Identification labels: Interval: 520.2-520.3 nm---->label: 256 26.00 34328 471 256: last 3 digits of wavelengths in nm lambda=520.2256 nm 26.00 = Fe I 26=atomic number of the element (Fe), 00=charge (I) 34328=lower enrgy level in cm-1 471=per mil residual intensity of isolated line before broadening (rotational + instrumental)