FORS2 spectrum of the bright central star of M 3-2 taken with the 300V grism. No attempt was made to remove the nebular lines. The inset shows a zoom in the blue part of the spectrum, with a synthetic spectrum corresponding to a model of T_eff = 8500 K, logg = 4.0 shown in orange. As the stellar spectrum is affected by the nebular lines, the bottom of the lines are not well fitted.