Spectra observed with LARS in the wavelength region around 5713 Å. The solar absorption spectra were observed in the quiet Sun at disk center (blue curve), and in the sunspot umbra (red curve; based on Obs. 8 in Table 1 and spatial context in Fig. 1). The ions of the spectral lines are stated in gray. The emission spectra of the laser frequency comb (LFC, green curve) and the titanium hollow cathode lamp (HCL, black curve) are required for the calibration of absolute wavelengths and Doppler shifts. The measured reference line of Ti I at 5713.8828 Å is marked.