The far ultraviolet spectrum of the OB-type subdwarf HD 149382.

High resolution International Ultraviolet Explorer spectra of the OB-type subdwarf HD 149 382 were obtained from lambda = 1160 to 3230 A. The stellar spectrum, which only shows hydrogen, helium and sulfur lines in the blue, exhibits more than 1500 absorption features with central depths greater than 0.2 in the far ultraviolet. He II 1640 is the only helium line found in this spectral region. The spectrum is dominated by the doubly and triply ionized stages of carbon, nitrogen and twelve heavier elements which are certainly or probably present. Oxygen and eleven other elements are possibly present. The Si IV resonance doublet at 1394 and 1403 A was not found. Preliminary atmospheric parameters t_eff = 35000 K, g = 10 to the 5.5 power cm s to the -2 power, log N_He/N sub H = -1.4 were derived.