On the spectrum of FG Sge.

Summary. Spectra of FG Sge and of the surrounding nebula Hz 1-5 were obtained during . An attempt was made to identify bright features in the spectrum of the star usually interpreted as interstices between absorption lines as emissions. The nebular lines 2 3727 [0 ii], 2 5007 [0 ii'], 2 3869 [Nem] might have been identified. The coincidence in wavelength of most bright features with lines of oxygen, nitrogen, carbon, sulphur, neon ions, forbidden iron transitions found in planetary nebulae, Wolf-Rayet and nova-like stars is indicated. Some arguments to the possible reality of the identified emission lines are given. Key words: FG Sge - emission lines - spectral changes