Abstract
The main parameters of the space observatory Orion-2 are given. In December 1973, it was used to obtain ultraviolet spectrograms of many stars. For bright stars of the class AO and earlier it proved possible to obtain spectra of stars down to 9 to 9.5m in the whole working range of wavelengths, i.e., 2000 to 5000 A. On the spectrograms of fainter stars, fainter than 10 m and even 12 m, the short-wave edge extended to 2500 A. In many spectra, spectral absorption lines can be distinguished; in particular, the doublet of ionized magnesium: 2800 Mg II. Some examples of microphotometric traces of the spectrograms are presented.
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