Results of photometric and spectroscopic investigations of the recently discovered disc cataclysmic variable star 1RXS J180834.7+101041 are presented. Emission spectra of the system show broad double peaked hydrogen and helium emission lines. Doppler maps for the hydrogen lines demonstrate strongly non-uniform emissivity distribution in the disc, similar to that found in IP Peg. It means that the system is a new cataclysmic variable with a spiral density wave in the disc. Masses of the components (M_WD = 0.8 +/- 0.22 M_sun and M_RD = 0.14 +/- 0.02 M_sun), and the orbit inclination (i = 78 +/- 1.5 deg) were estimated using the various well-known relations for cataclysmic variables.
@article{arxiv.1010.0188,
title = {1RXS J180834.7+101041 is a new cataclysmic variable with non-uniform disc},
author = {D. G. Yakin and V. F. Suleimanov and V. V. Shimansky and N. V. Borisov and I. F. Bikmaev and N. A. Sakhibullin},
journal= {arXiv preprint arXiv:1010.0188},
year = {2015}
}